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: Arnie's muscles on his upper arms are very thick, while Davy's upper arms are thin. Question: Who is likely to be stronger? (A) Arnie is stronger (B) Davy is stronger

Ex Output:
A


Ex Input:
Sentence: A plastic bottle rolling across a picnic table experiences low friction, while a plastic bottle rolling across a lawn experiences high friction. Question: Which surface will make the plastic bottle get hotter as it rolls across? (A) picnic table (B) lawn

Ex Output:
B


Ex Input:
Sentence: Hulk is the strongest being in the universe. The Hulk and Black Panther have a friendly bet. Who can throw a large boulder the farthest. Question: Who wins this clash of the superheroes? (A) Black Panther (B) Hulk

Ex Output:

B