You will be given a definition of a task first, then some input of the task.
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: Tom and Jim are brothers.  Tom is thirteen and Jim is six.  Tom is much bigger.  They go out to throw rocks at the lake. Question: Who can throw them farther? (A) Tom (B) Jim
Output:
Tom