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: Jim ran over a nail on his bicycle and got a flat tire. David ran over the same nail in his car and his tire didn't get flat. Question: Why did Jim get a flat tire but David did not? (A) Jim weights more than David (B) Jim's tire was thinner
Jim's tire was thinner