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: Tom and Steve are riding their bikes to the beach.  Tom starts riding his bike earlier. Question: Who rode their bike further? (A) Tom (B) Steve
[EX A]: Tom

[EX Q]: Sentence: A bowling ball has more mass then a baseball. Question: Which item has stronger gravity? (A) baseball (B) bowling ball
[EX A]: bowling ball

[EX Q]: Sentence: Kathy is looking at new tires for her car. The brand A tire has a very thick tread on it, while the brand B tire has a thinner tread on it. Question: Which tire would Kathy buy if she wants the stronger tire? (A) Brand A tire (B) Brand B tire
[EX A]:
Brand A tire