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.

Example Input: Sentence: A zebra is forced to run at a slow pace in a zoo, but can run at a fast pace in a field. Question: Which surface has less resistance? (A) field (B) zoo
Example Output: field

Example Input: Sentence: A skateboard wheel gets hotter when rolling over a gravel driveway compared to rolling over a dirty path. Question: Which surface is providing more friction? (A) gravel driveway (B) dirty path
Example Output: gravel driveway

Example Input: Sentence: The Moon is less massive than the Earth. Question: On which would the gravity be lower? (A) Moon (B) Earth
Example Output:
Moon