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.

Ex Input:
Sentence: Maria and Dave were excersizing.  Maria walked around the track for ten minutes.  Dave did jumping Jacks for ten minutes, then ran for twenty five minutes. Question: Who sweat more? (A) Maria (B) Dave

Ex Output:
Dave


Ex 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

Ex Output:
west


Ex Input:
Sentence: Two identical trucks begin to accelerate as fast as possible. One truck is empty and one is full of bricks. Question: Which truck will accelerate more quickly? (A) Empty truck (B) Truck full of bricks

Ex Output:

Empty truck