Instructions: 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: Tim and Tom went to the gym to work out. After an hour Tom was a lot sweatier than Tim, even though they were both wearing shorts and a tank top. Question: Who had been exercising the least? (A) Tim (B) Tom
Output:
Tim