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: Mitch is rolling wagons down a hill at the same time. The red wagon goes to the bottom of the hill, but the black wagon stops halfway down the hill. Question: Which wagon was slower? (A) red wagon (B) black wagon
Example Output: B

Example Input: Sentence: Bob slid a coin across his dining room table, then slid the same coin across a wood picnic table. He noticed that the wood picnic table caused more resistance. Question: Which surface would the coin slide the greater distance on? (A) The dining room table (B) The wood picnic table
Example Output: A

Example Input: Sentence: A globe rolling around on a library floor experiences less resistance then one rolling around on a study floor. Question: Which floor will cause the globe to heat up less when rolled across it? (A) study floor (B) library floor
Example Output:
B