You are given a sentence, a question and two answer options ('A' and 'B'). Your task is to find the correct option for the given question. Write down the answer index: 'A' or 'B'.

Example Input: Sentence: Ellen is stronger than Sarah. Both throw a softball from home plate out into the field. Question: Which throw goes farther? (A) Sarah's (B) Ellen's
Example Output: B

Example 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
Example Output: A

Example Input: Sentence: A bag of trash blows a little ways across the parking lot. Then it reaches a sidewalk. The bag blows all the way away from the building. Question: Which is less bumpy? (A) parking lot (B) sidewalk
Example Output:
B