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: Jacob and Benny are squatting at the gym. Jacob has thin frail legs and Benny has big strong legs. Question: Who squats less weight? (A) Jacob (B) Benny
Example output: A
Example explanation: Typically, people with thin frail legs squat less weight than people with big strong legs, so the answer is A.
Q: Sentence: A wooden arrow has a smoother time penetrating a straw target compared to a metal target. Question: Which target is going to make the wooden arrow get hotter as it penetrates it? (A) straw target (B) metal target
A:
B