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: Biff was trying to prove to the bar that he was very strong. Question: Which would be a better thing to rip in half to show off? (A) Phone Book (B) Letter
A:
Phone Book