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 turtle isn't as fast of a runner as a rooster. Question: If they both run for 5 minutes, which will have gone the greater distance? (A) turtle (B) rooster
Example Output: rooster

Example Input: Sentence: Sam is standing in an underground tunnel. It's pretty dim where he is but he can spot two lights. The light to the west appears brilliant, and the light to the east appears pretty dim. Question: If he wants to walk to the closest light, which was should he go? (A) east (B) west
Example Output: west

Example Input: Sentence: Yolanda was driving, and she turned onto a road that ran alongside some railroad tracks. A train was moving down the tracks, going in the same direction that she was. A few minutes later, the train had passed by her and she could only see the back of the train. Question: Which vehicle had a greater rate of speed? (A) the car (B) the train
Example Output:
the train