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 Q]: Sentence: Two cars are traveling down a highway. They start out next to each other, but in 10 minutes, the car in the right lane is way ahead of the car in the left lane. Question: Which car wasn't going as fast as the other car? (A) the one on the left (B) the one on the right
[EX A]: the one on the left

[EX Q]: 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 A]: gym floor

[EX Q]: Sentence: A millipede and a centipede were walking along a trail at the same speed. The millipede stopped after 8 feet and the centipede kept going. Question: Which one spent less time walking? (A) the millipede (B) the centipede
[EX A]:
the millipede