Teacher: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.
Teacher: Now, understand the problem? Solve this instance: Sentence: A pair of glasses experiences low resistance when slid across a counter, but high resistance when slid across an office desk. Question: Which surface will cause the glasses to get hotter as they travel across it? (A) counter (B) desk
Student:
desk