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 tape measure sliding across plywood has more resistance then one sliding across a writing desk. Question: Which surface will make the tape measure get hotter? (A) writing desk (B) plywood
Example Output: B

Example Input: Sentence: Greg and Lisa both live 2 miles from the library. Greg takes off on foot. Lisa uses a scooter. Question: Who gets there first? (A) Greg (B) Lisa
Example Output: B

Example Input: Sentence: Joe was the fastest runner in his school. Another student at his school, Larry, challenged him to race the length of the football field. Question: Which student made it in the least amount of time? (A) Joe (B) Larry
Example Output:
A