Given the task definition and input, reply with output. 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.

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
Jason