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 frisbee benefits from low friction when sliding across a frozen lake and high friction when sliding over frozen ground. Question: Which surface is going to make the frisbee slide at a lower rate of speed? (A) frozen lake (B) frozen ground
A:
frozen ground