Everyone 
done his or her homework.
Explanation:
Everyone is singular and, therefore, require singular verb.
Essential Part is one of the important topics in the Logical Reasoning section. In Essential Part Questions, each question contains a word followed by the answer choices. Aspirants can get Essential Part Logical Reasoning Questions and Answers with Solutions from this article.
Yayyyyyyyyyyyyyyyyyyyyyyyyyyyyyy
Hello there, to help right of the bat. I know B is not the right answer. But after reading i belive that A is the correct answer choice because Churchhill is basically saying that during WW2, the British and the French saved Belgium, but only after it was attacked. Churchhill is saying that if they would not have been neutral they could have saved Poland from Axis attacks. So i belive that the answer is A
