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: Janet is testing how much mass objects have. She is currently testing between a metal rod and a paper crane. She drops both from six feet in the air at the same time. Question: Which has stronger gravity? (A) metal rod (B) paper crane

Ex Output:
metal rod


Ex Input:
Sentence: Debbie was exercising with a giant exercise ball. It rolled out from under her and rolled on the frictionless gym floor. She retrieved it and started again, but this time it rolled onto a rough rubber mat. Question: Which surface was smoother? (A) gym floor (B) rubber mat

Ex Output:
gym floor


Ex Input:
Sentence: A soccer ball weighs less then a lead weight. Question: If both are thrown across a field, which will speed up quicker? (A) soccer ball (B) lead weight

Ex Output:

soccer ball