You are given a sentence, a question and two answer options ('A' and 'B'). Your task is to find the correct answer (return the string of the correct option, not 'A' or 'B') for the given question.

[Q]: Sentence: Rebecca rolls the globe in her classroom over a book and then the carpeting. Rolling it over the book generates less heat than on the carpet. Question: Which surface has more resistance? (A) book (B) carpeting
[A]: carpeting

[Q]: Sentence: Bob and Sue were walking down the sidewalk and heard an air conditioner in the distance. As they walked closer, they noticed they couldn't hear each other over it. Question: When was it loudest? (A) when the air conditioner was far away (B) when the air conditioner was nearer
[A]: when the air conditioner was nearer

[Q]: Sentence: Mike knows that a train is slower then a plane. Question: If he rides both vehicles for 40 minutes, which will have taken him a lesser distance? (A) train (B) plane
[A]:
train