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: David was playing whiffleball in the backyard. He hit the ball and it rolled quickly on the soil. He then hit the ball again and it rolled more slowly in a mulched area. Question: Where would the ball roll the longest distance? (A) soil (B) mulch
Example Output: A

Example Input: Sentence: A plunger gets a lot hotter plunging through a clogged toilet then plunging through a clean toilet. Question: Which surface will let the plunger go a greater distance per push? (A) clogged toilet (B) clean toilet
Example Output: B

Example Input: Sentence: Alvin and Cameron are planning a trip to another state.  Alvin travels by plane, while Cameron takes a car.  They leave at the same time. Question: After two hours, who has traveled farther? (A) Alvin (B) Cameron
Example Output:
A