Why is it not b ?

I think it could be either and be ok. However, the meaning would be different. To use b would mean that person is asking for the conclusion to still be changed. To use c would mean this is finished and there won’t be any more changes.

C if they it has already been published or they didn't write it. B if I'm helping them edit the report.

I‘m fluent in English, I’ve always used B in this scenario

The logic of C is: I would rather you had changed: the changing was something that (by preference) should have happened and been completed *before* the moment in the past when you read and liked it. So, simple past for did you like, past perfect for had changed. However, B also makes sense: I liked the report in the past, but I would like it even more if you rewrite it to change the conclusion *now, or in the future.* To make B the obviously correct answer, they could have made the example, “Did you like the report? Yes, but I would have preferred it if you had changed the conclusion.”

English teacher here. It could be b too in a real life scenario. When you create a document to assess knowledge and mastering of a grammatical concept there can't be any space of doubt for the student to select the right alternative. That is to say that b, as an alternative, leads to confusion and for that reason invalidates the exercise and perhaps the whole testing document as well.

Past tense. The report is already out. 

The question is the past tense, so the answer would match. The report is already complete so it's not something that will change in the future, can change now, or is in the process of changing. Compare to the below similar structures that combine the conditional past and past perfect. I'd have missed the flight if you hadn't remembered to bring our passports. If I'd studied harder in school I wouldn't have failed the test. Note: each use of "I'd" is different!

Mind me, I didn't have the best english teacher (and am recovering from a migraine) I believe it's C. Reasoning: For me, it reads like the report was already submitted, so you can't change it anymore. You would've liked a different conclusion, but since the report was already submitted before you could voice your opinion, you can't do more than mention your disappointent that it wasn't to your liking. Did is past tense, so I read it that way. At least that's how I understood the text. If it would have been "Do you like the report?", I would've also chosen B, as it implies that the report is done, but not submitted. They sent it to you and are awaiting your opinion.

C is past tense, like the "did you like" question. B is present tense

Change is present tense. Had changed is past tense. Since he is discussing a report, he is talking about something already done.

C is academically correct but colloquially b is more likely

As far as I know when using I'd rather + different subject, in that case "you", you should use the past simple in that construction. So it would be "I'd rather you changed...", therefore it couldn't be option b.

Did you like the report uses the past of the verb to do, implying it's already been completed. Using option B would imply that you could still change it and it's not completed while C expresses the wish that you had changed it at the time when it was still possible.

I'm a native speaker in the US. B is the correct answer: "I'd rather you change the conclusion." This sentence illustrates the subjunctive mood expressing a preference or desire for an alternative to the present situation. It indicates that you are being asked to change the conclusion. You could also say, "I wish you had changed the conclusion," but that would indicate that it's too late to change the conclusion.

Changing it now will not affect what they **did** think about it, in the past.

C. Is correct, but B could be said informally. The real issue is that English does not have much declension or change in verbs in its tenses making it all easily confusable. C is past perfect subjunctive, the subjunctive mood being used to express hypothetical, uncertain or desired actions. And the tense is past perfect, to describe a past action that has already been completed before another action being discussed. B _could_ be subjunctive since all past tense verbs in English are used for subjunctive (for the most part), or it could be simple past tense, too. Either way, it is missing the pluperfect tense.

After the term "I would rather" we use a present when we talk about ourselves. Example: I'd rather go home. And we use the past tense when we talk about someone else. Example: I'd rather you went home. So none of the options look right to me.

B is what people say when not speaking formally

**“Would rather”** triggers the **subjunctive mood**. Which **subjunctive form** to use depends on the tense of the **indicative mood**—in this case, **past** ("did"). So, grammar requires the **past perfect** form: **“I would rather (that) you had changed.”** This makes **C** the correct answer, as it expresses **regret** about something that didn’t happen. **B** is possible if you interpret it as a **present subjunctive**—a current preference or demand. However, to make **B** a strong case, it would need a clear **present time marker**, such as: “I would rather you change your tone **now**.” Since there is **no such present marker**, and the **only time marker** is in the **past tense**, for the sake of **tense consistency** across different moods, **C** has to be the best choice.

Change is present tense, had changed is past tense. They are not referring to you changing now they’re referring to you changed it when you originally wrote it.

The answer is C because of "would." The answering sentence is in irrealis.

Because the sentence is in the past tense, and referring to past actions

I think that if the tenses were to be held to strictly in this case had the question been "*do* you like the report", then b would be the best answer. Then saying one would rather you "change" the report implies the report is currently being planned and in some sense is not yet delivered or finished. But because they write "*did* you like" it is as if the report has been delivered already, and "*had* changed" is the better answer as it is consistent with the past tense of what the report creator might have done , and not what they have an option to do.

It could be either but this test wants you to pick up on matching the tenses perfectly. So because the sentence said “I’d” (I had), it wants “had” in there

B is the proper use of the conditional. C is talking about the past.

He steady trying to divert your attention in 2 ways. The anwser is B but highlighted C and then asked the question. From all the options the anwser is B. Just tried to mind fuck tho they bored

Both are correct. B conveys the change can still occur, whereas C conveys the change never did.

عاملها changing كسم الواد اللي ورايا علي كسم دا امتحان مفهوش جرامر صح

Did = past tense, so needs past tense response (c) - if this is just a critique. However, if there is the ability to change the report, then (b) would be more correct.

The keyword is "did". The report was already said and done and you would rather wish he/she had changed the conclusion. If it says: "Do you like the report?" - "Yes but I'd rather you change the conclusion." I think in English grammar rules they call it "Verb Tense Consistency".

what all the comments are missing is that this is one of those lame tests for international students where you have to be grammatically correct or wtv so while we use B irl it’s not grammatically correct it’s either “had changed” if the report is already published or “changed” if you’re writing it never change

In conversation both work but had changed is more grammatically correct with the implied context that the essay was already published.

B and C are both acceptable. B is for when there's still an opportunity to change the conclusion; it is a request. C is a gripe about something that's already done.

C fits because “had changed” means that the conclusion has already been made, which matches because we know that the report has already been written. B while not as technically accurate still works and if I heard someone say that I wouldn’t think twice about it.

Either one could be correct, with different meanings. B is suggesting you should make this change. C is wishing you had already done it.

Past tense “had” seems more in sync with “did you like” also past tense

I'd is an abbreviation for "I would have" which is an action in the past so the past tense applies to the rest of the sentence but second person singular of the verb "to have" is "had" therefore "had changed"

I agree with your reasoning, I thought the same. Past Simple frames the action as concluded and cuts off any connections to the present, so changing the conclusion is not an option.

Tricky. Grammatically I think B and C both work, but because it uses the word "changed" and not "written," I actually think this text is mishandling common connotation. When I normally read something and want it to be different, I wish it had been "done" or "written" differently. I doubt I'd ever think to use the word "change" in that situation unless I meant that the change should happen now or later.

I feel like I would have said 'i'd rather you'd have changed' which isn't an option

So this is the EGYPTIAN ENGLISH EXAM I WAS AT IT TODAY AND I DID IT CHANGE AND I WOULD GET 100% if it’s B what i understood was that he liked the report but his personal preference is that he would like it more if he changes the conclusion So ENGLISH TEACHER WENT OUT TO SAY IT WOULD BE HAD CHANGED BECAUSE THERE IS A SUBJECT AFTER WOULD RATHER BUT I DON’T AGREE WITH THAT REASONING I THINK IT DOESN’T EVEN MAKES SENSE HOPE SOMEONE HELPES ME HERE LIKE I ALREADY FUCKED UP AT PHYSICS AND LOST ABOUT 6 degrees and arabic 2.5 degrees so if this is wrong i would lose another 2 degrees and i still have chemistry and biology and i need to get 95% of 360 degrees to join dental medicine college the problem is cheating is the most common thing here and i hate it and i think it’s unfair for someone like me to be studying for 10 months just to not go to his dream college because of cheating and lastly i hope the government count it as both b and c