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: Consider Input: Sentence: Bob took his toy car outside to play with it. He rolled it on the street and then he rolled it in the grass. He noted that the toy car rolled much faster in the street. Question: Which surface caused more friction? (A) The street (B) The grass

Output: The grass

Input: Consider Input: Sentence: Painted concrete is less sticky then plain concrete. Question: This means that a hand ball rolled along which surface will create less heat? (A) plain concrete (B) painted concrete

Output: painted concrete

Input: Consider Input: Sentence: Violet was rolling an eggplant around the kitchen. She noticed that when she rolled it across the kitchen rug, the eggplant went slower than when she rolled it across the wooden cutting board. Question: She realized that this happened because which surface was smoother? (A) cutting board (B) kitchen rug
Output: cutting board