Firstly, Conditional past real mood is a statement where one explains what they would have done if some event had occurred, or what could happen, in other words, a theoretical action. The tense will be dependent on the action. Therefore, the only one that fits is C "If I had homework, I would have studied at the library." I properly states their theoretical scenario in which they had homework.
The answer is A
He wouldn’t have started world war II if he thought jewish people were better.
The logical connection is absent. The answer lacks any explanation to the question being made. The main problem is that the interviewer is left with a very incomplete response, one that requires a lot of work from part of the interviewer. In this case in particular, even if there were a connection between reducing rates and unemployment, it seems that the candidate does not really have an answer to the question. That is why the fallacy is the lack of connection or relevance between the question and the answer