You are given a sentence, a question and two answer options ('A' and 'B'). Your task is to find the correct option for the given question. Write down the answer index: 'A' or 'B'.

Example Input: Sentence: Franklin found that if he slides a turtle on its back across a pool table, it slides farther than if he were to slide the turtle across a pile of leaves. He realizes this because there is less resistance on the pool table. Question: The difference in the length that the turtle slides across both surfaces can be attributed to which surface being rougher? (A) pool table (B) pile of leaves
Example Output: B

Example Input: 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
Example Output: B

Example Input: Sentence: In an amateur drag race, Kevin reached the finish line before his competitor, Harold, was even halfway there. Question: Between the two of them, which racer's dragster had been souped up? (A) Harold had the souped up dragster (B) Kevin had the souped up dragster
Example Output:
B