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'.

Ex Input:
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

Ex Output:
B


Ex Input:
Sentence: Lisa was playing with two model rockets. She shot off the red one and the black one at the same time. After 30 seconds the black one was higher in the sky. Question: Which had more speed? (A) the red one (B) the black one

Ex Output:
B


Ex Input:
Sentence: Jasper is carrying his nephew in the park.  Then it's his niece's turn.  His niece is five years older and weighs more. Question: Who has more of a gravity pull? (A) the niece (B) the nephew

Ex Output:

A