Definition: 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.
Input: Sentence: A karate champion is breaking boards. He has two boards left to break. A thin piece of plywood and a thick piece. Question: Which board will be easier to break? (A) Thick (B) Thin
Output:
Thin