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: The wheels of a shopping cart heat up quite a bit when rolling through the parking lot, but quite a bit less when rolling around on the store floor. Question: Which surface is providing less friction? (A) parking lot (B) store floor
Example Output: B

Example Input: Sentence: Emily has a plastic massager and a glass massager. She was carrying one in each hand and tripped, sending both to the floor. Question: Which will shatter? (A) the plastic massager (B) the glass massager
Example Output: B

Example Input: Sentence: Shaquille O'neal weighs more than twice Allen Iverson's weight. Question: Who would take longer to run the length of the basketball court? (A) Iverson (B) O'neal
Example Output:
B