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.

Q: Sentence: Jason is with his grandmother at the park.  She has a cane to walk but Jason is lively.  They decide to walk around the track. Question: If they go their own pace, who will walk farther in five minutes? (A) Jason (B) his grandmother

A: Jason
****
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

A: Esther
****
Q: Sentence: Mary was practicing karate by trying to break objects. She broke the plywood easily with her hand, but couldn't break the wooden stud no matter how hard she hit it. Question: Which object is the thicker one? (A) plywood (B) wooden stud

A:
wooden stud
****