You are given a sentence, a question and two answer options ('A' and 'B'). Your task is to find the correct answer (return the string of the correct option, not 'A' or 'B') for the given question.

Example Input: Sentence: A knob rolled across a wooden table travels at a lower rate of speed then one rolled across a metal table. Question: Which surface provides more friction to the knob? (A) wooden table (B) metal table
Example Output: wooden table

Example Input: Sentence: Judith and Cassie decide to go on a walk together and talk about what's going on in their lives. They start at Judith's house and plan to go around the block and back. Cassie decides to stop at her friend's house for the rest of the day while Judith finishes the walk. Question: Who walked more? (A) Cassie/ (B) Judith
Example Output: Judith

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:
Joe