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.

Sentence: Bob was cleaning with a scrub brush. He cleaned both tile and carpet. He noted that the carpet caused more friction. Question: Which surface would cause the scrub brush to scrub with less speed? (A) The carpet (B) The tile
The carpet