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: A hair brush experiences low resistance when slid across a porcelain tile compared to when it is slid across a throw rug. Question: Which surface will allow the hair brush to slide a greater distance? (A) throw rug (B) porcelain tile
Output:
porcelain tile