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: Rolling a red ball across an orange carpet makes the ball get hotter then rolling it across a blue carpet. Question: Which carpet is the most smooth? (A) blue carpet (B) red carpet
Output:
blue carpet