All of them seem wrong

Under the formal rules of grammar, “neither” takes a singular verb, so A should be “Neither of the girls has finished their homework.” However, this rule is widely ignored in everyday usage and most native speakers are fine with A. Technically, “data” is the plural of “datum”, and so it should take a plural verb. So C should be “The data from the experiment were inconclusive.” However this is widely ignored in everyday speech, and “data” is usually used as an uncountable noun that takes a singular verb. Most native speakers are fine with C. So the correct answer depends on which old formal rule the author cares about. I’m guessing they intended C to be correct.

But neither of is also singular

A) Neither of the girls **has** finished **her** homework. B) The news about the earthquake **has** shocked everyone. C) ✅ D) The people in the meeting **were** all invited by the manager.

I believe the answer is A.

A and C are technically incorrect (“neither” means “not either” and data is the plural of datum) but the vast majority of people use them. B and D are just plain wrong.

C is correct because in modern English, "data" is treated as an uncountable noun, not as the plural form of "datum". A is incorrect, you don't say "neither [one] have", it should be "neither [one] has".

A and C are both correct grammatically. The 'data [...] was' in C would usually be replaced with 'results [...] were' in normal conversation

C - definitely correct B & D - definitely wrong A - debatable - opinions vary. Some would claim that "neither" should take the singular "has".

A is correct. B should either use "has" or eliminate "have", both solutions would make the sentence correct C is grammatically fine, but at a technical level this is not how the scientific process works. The *results* are inconclusive. Data is just data, "results" would imply an analysis or conclusion -- in this case, an analysis that produced nothing with which to make a determination about the topic of the experiment. D should use "were"

Hmm, could *Neither of the girls had finished their homework* work?

This is a tough one. Especially for a native speaker like myself. I'd say A in regular speech but that's technically wrong. Neither is singular here. *have* should be *has* This is the case when using "neither of ..". because *of* shifts the subject to be "Neither". "Neither of us has the right answer" - Neither is the singular subject lol C is the answer.

Neither should have two persons, no more than 2. so A might be correct.

Data is now widely considered a singular noun, or technically a mass noun, like “information,” and takes the singular verb. But I don’t believe that treating it as a plural is as yet considered incorrect. “Neither” takes a singular verb bc it refers to one item (person in this case) at a time. “Neither this (one) nor that (one) is…”

C

C is correct

A should be none, neither sounds a bit weird without context

C

The question is about subject-verb agreement, so A is correct. B should be: "The news about the earthquake has shocked everyone." C should be: "The data from the experiment were inconclusive." D should be: "The people in the meeting were all invited by the manager."

Both A and C seem correct to me. Why do you think they’re wrong?

B would be 'has', not 'have'. D would be 'were', not was. I don't see anything wrong with C, and A is definitely correct

It depends on the level of pedantry of the question writer. B and D are definitely wrong. A and C are OK to most native speakers but both incorrect on a more pedantic level. A - I'm a low level pedant, and would say "neither of the girls HAS." C - "data" is teeeechnically plural, but you need to be a high level pedant to treat it as such.

technically the only grammatically correct one is C, but most people won’t notice anything wrong with A if used. the problem with A is, the verb “to have” is referring to the singular noun “neither” instead of the plural “girls” so the sentence would use “has” instead. in spoken english, both sound perfectly normal.

Either A or C is correct

I work in academia as a researcher. The moment anyone refers to data as a singular noun, you can see the entire room lose respect for them. I wouldn’t be shocked if 100 years from now, data became a singular noun in all contexts; however, using it as such still carries a negative stigma in certain settings today.

A and C are correct

There are actually two choices which can go either way. "Data was" and "data were" are both possible. While "data" started out as the plural of "datum," and still is used that way sometimes, it is more frequently treated as a mass noun. That is probably the correct answer. "Neither of the girls was" is more likely correct, but in some dialects, the proximity of "girls" ends up turning the verb plural, and you end up with "neither of the girls were." I suspect you are being taught "neither ... was" though.

Not one of them is pedatically correct. But one and three will pass in conversational English. Neither equals not one which takes singular. And data is always plural.

In my variety, A and C are both correct.

The subject of A is "neither" which is singular. Although not many people would notice anything wrong with A as-is, grammatically, it should be "Neither of the girls HAS finished their/her homework". B should be "has", because it's referring to "The news", which is, again, singular (and uncountable). C is fine to the average person, more-so nowadays. It all depends on context and setting. Saying "The data from the experiment were inconclusive", would sound strange to most people. Likewise, saying "The datum from the experiment was inconclusive" would also sound weird. However, in scientific, academic, and technical writing, both of those sentences would be considered the correct usage. D, again "the people" is plural, so it should be "were". So, saying "all of these seem wrong" does have merit.

A is supposed to be *has*, but outside of academic writing nobody would care. B is supposed to be *has*. C seems fine. D is supposed to be *were*.

A and C are correct. B is third-person singular; therefore, “have” should be “has.” In D, “the people” is plural; therefore, “was” should be “were.”

C or A but most c

It's not really a fair question. B and D are both wrong. A & C, are also both considered wrong by some, not both are widely used. 

C is the answer but you could get away with saying A in normal speech. The other two just sound wrong.

A or C, but both are definitely debatable.

A and C are both correct.

I consider C to be incorrect. Grammatically it is correct, but data cannot be conclusive or inconclusive. Data is just data. The results of the experiment can be inconclusive.

A and C both seem fine.

I mean, even if you want to argue about A, C is clearly correct.

C is the correct answer

B and D are wrong and sound wrong. C is definitely wrong because data is plural, but you could sneak that by most people. I thought A was correct until I read the comments here, so I would think that was *meant* to be the answer? It certainly sounds the best

It's acceptable to treat "data" as either plural or singular.

C

ABD are unambiguously wrong, but C is arguably right. Data can be either plural or singular depending on your opinion, all the others have the singular/plural wrong.

C is correct.

A is “incorrect” but perfectly acceptable in common speech. We all know it should be neither has, because neither considers each one individually, but frankly we don’t give a damn. It’s okay to casually use a plural here. B and D are quite obvious C is correct because data has evolved from a plural noun into an uncountable. The days where datum is singular and data are plural, are long gone. Data is like sand. Many individual grains of sand, far too many to count, yet a pile of sand is an it. Not a they. So it is with data. I’m an engineer and when referring to an individual bit of information we never say datum - we say data point. It sounds nonsensical for a single point, and it is, but when you’re considering two or three you need a countable plural, hence, data points. I’m sure the word datum is still popular amongst English majors, but those who actually work with data no longer use it.

A and C are fine. B is incorrect, because it is past-tense, so it should be "has shocked". D is incorrect, because people are plural, it should be "were". What do you think is wrong with A or C? A technical pedant might talk about "data" being the plural of "datum", but that's pretty obscure, and not common usage. I'm sure some prescriptivist grammarians will argue with me about "Neither have", plural, but I don't care. It's normal English. It's a shit question.

I’d say u/agate_ gave a perfectly cromulent response, but I’m just adding a bit of discussion bc choice A is quite an interesting conundrum regarding its correctness. From a truth-functional respective, I’d argue “neither” *should* take a plural verb for consistency, even if it licenses a singular verb in formal grammar. ||My understanding is that “neither” functions as a quantifier that can be semi-formally described as scoping over a logical predicate that takes two agents X and Y and some action Act such that Act(X) (agent X performs an action Act) and Act(Y) and Act(Y) must be false for a sentence with “neither” in top level scope to be true.|| For example, “Mary and John are not dead.” and “Neither Mary nor John are dead.” are two logically equivalent statements. From a purely generative syntactic standpoint (or what I remember of syntax and UG), it makes more sense for “neither” to take a plural verb.

Technically they are all incorrect. C is the closest to correct I think.

A and C seem correct to me.

A and C seem fine

In American English, the word data is singular. In British English, the word data is plural.

A

C would be correct everywhere except in the US where they insist (correctly but pedantically) that data is the plural of datum (but data is treated as a singular in English, except for the US)

You guys really need to stop teaching people borderline incorrect grammar just because you think you know all the rules of English grammar even though English doesn’t have an official list of grammatical rules. “Data were” and “Neither of the girls has” are both grammatically incorrect. Please stop this stupidity.

They are all incorrect. Point blank.

Hey)

The correct sentence is A. The number zero, as well as its equivalents like *none* and *neither* grammatically behaves like a plural. However, and I will die on this hill, C is also correct. *Data* belongs to the same class of words as *group* or *family* and therefore should be used in the singular. So while in writing it will always read “the data have”, when spoken it feels much more natural to say “the data has”.