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 cat has low resistance when running through a jungle and high resistance when running through a bedroom. Question: Which surface will allow the cat to reach a higher top speed as it moves around on top of it? (A) bedroom (B) jungle
Example Output: B

Example Input: Sentence: Jenny and Suzy are both using treadmills at the gym. They are both doing so for 30 minutes. Jenny is running, while Suzy is walking. Question: Who is likely to sweat less? (A) Jenny (B) Suzy
Example Output: B

Example Input: Sentence: Biff was trying to prove to the bar that he was very strong. Question: Which would be a better thing to rip in half to show off? (A) Phone Book (B) Letter
Example Output:
A