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: A reed is more flexible then a stick. Question: If bent, which object will be less likely to break? (A) reed (B) stick
Example Output: A

Example Input: Sentence: Rose's mom took Rose roller skating one night. Rose's mom didn't feel like skating so she sat and watched as Rose skated around the rink many times. Question: When Rose and her mom get in the car to ride home, whose seat will least need a towel to soak up sweat? (A) Rose's seat (B) Rose's mom's seat
Example Output: B

Example Input: Sentence: Polyethylene is more flexible then pvc. Question: Which plastic is the more breakable of the two? (A) polyethylene (B) pvc
Example Output:
B