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: Kevin took a plane from NY to Chicago while Esther took a plane from NY to LA which takes longer at the same speed. Question: Who travelled further? (A) Kevin (B) Esther
[EX A]: Esther

[EX Q]: Sentence: A microphone rolling across a chair makes it get hotter then one rolling across a stage. Question: Which surface is the most smooth? (A) stage (B) chair
[EX A]: stage

[EX Q]: Sentence: Rob and Rich are doing gymnastics. Rich is dripping wet with sweat and Rob appears to be sweating only a little. Question: Who's doing the more intense exercise? (A) Rob (B) Rich
[EX A]:
Rich