You will be given a definition of a task first, then some input of the task.
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.

Sentence: A bus left the station fully loaded. The next day after the driver drive to the next town with an empty bus. Question: Which bus would have gotten to 50mph faster? (A) Loaded bus (B) Empty bus
Output:
Empty bus