Detailed 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.
Q: Sentence: A microphone rolling across a chair makes it get hotter then one rolling across a stage. Question: Which surface is the most smooth? (A) stage (B) chair
A:
stage