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: Bob was cleaning with a scrub brush. He cleaned both tile and carpet. He noted that the carpet caused more friction. Question: Which surface would cause the scrub brush to scrub with less speed? (A) The carpet (B) The tile
Example Output: A

Example Input: Sentence: The strongman, who is very strong, and bearded lady, who is not so strong, at the circus are playing a game. They each throw a Weight as far as they can. Question: Who can throw it farthest? (A) strongman (B) bearded lady
Example Output: A

Example Input: Sentence: Jim and Bob are running on the track. Jim has a hurt knee and can't run as fast. Question: After a half hour, who has run further? (A) Jim (B) Bob
Example Output:
B