You are given a sentence, a question and two answer options ('A' and 'B'). Your task is to find the correct answer (return the string of the correct option, not 'A' or 'B') for the given question.

Ex Input:
Sentence: A model car rolling across a desk is experiencing more friction then one rolling across a display case. Question: Which surface will give the model car a rougher ride? (A) display case (B) desk

Ex Output:
desk


Ex Input:
Sentence: A group of kids are playing in the snow on a winter day. They roll up some snow into a huge snowball and roll up some snow into a smaller snowball that is about half the size of the larger snowball. Some of the kids push the huge snowball and some of them push the smaller snowball. Question: Which snowball will take longer to get up to a fast speed? (A) smaller snowball (B) huge snowball

Ex Output:
huge snowball


Ex Input:
Sentence: A piece of cardboard is more flexible then a stone slab. Question: Which item will be more likely to break if bent? (A) cardboard (B) stone slab

Ex Output:

stone slab