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: Lillian just left the gym and she is now incredibly sweaty. Question: Which was she likely doing in the gym? (A) Running on the treadmill (B) Taking a yoga class
Example Output: Running on the treadmill

Example Input: Sentence: Abigail is very thin, and her friend Megan is muscular and broad. Both are trying to move a heavy box. Question: Which will move it first? (A) Abigail (B) Megan
Example Output: Megan

Example Input: Sentence: Mercury is less massive than Mars. Question: Which one has the weaker gravitational force? (A) Mars (B) Mercury
Example Output:
Mercury