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: Mars has a greater mass than the moon. Question: Which object will attract fewer objects to it? (A) Moon (B) Mars
Example Output: A

Example Input: Sentence: Janet is testing how much mass objects have. She is currently testing between a metal rod and a paper crane. She drops both from six feet in the air at the same time. Question: Which has stronger gravity? (A) metal rod (B) paper crane
Example Output: A

Example Input: Sentence: A golf ball has a smaller mass then a baseball. Question: Which item has a weaker gravitational field? (A) golf ball (B) baseball
Example Output:
A