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.
--------
Question: 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

Answer: Esther


Question: Sentence: A zebra is forced to run at a slow pace in a zoo, but can run at a fast pace in a field. Question: Which surface has less resistance? (A) field (B) zoo

Answer: field


Question: Sentence: Suppose Flash who is the fastest superhero on the planet races Ironman in a 1 min all out sprint. Question: Who would win this race? (A) Ironman (B) Flash

Answer:
Flash