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.

Example Input: Sentence: The wheels of a shopping cart heat up quite a bit when rolling through the parking lot, but quite a bit less when rolling around on the store floor. Question: Which surface is providing less friction? (A) parking lot (B) store floor
Example Output: store floor

Example Input: Sentence: John rides the bullet train from Tokyo to Kyoto and Jim rides the same path on his bicycle. Question: Which person will spend less time making the trip? (A) John (B) Jim
Example Output: John

Example Input: Sentence: Karl is trying to light a match on his pant legs with very little success. He finds a piece of rough leather to strike the match against and the match lights up in no time. Question: Which surface provides more friction for heat? (A) PANT LEG (B) ROUGH LEATHER
Example Output:
ROUGH LEATHER