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: Due to its much weaker gravity, astronaut Kevin is thrilled to discover that he can jump much higher on the moon than he ever could when on Earth. Question: Judging from Kevin's exploits, which of the following is true? (A) Earth has less mass (B) The moon has less mass
Example Output: B

Example Input: Sentence: Two fisherman are out on a big lake when a heavy fog unexpectedly covers them and they can barely see anything. But the fisherman hear two fog horns calling from the shore. The one towards the left is louder than the one off towards the right. Question: Which one should they head towards if they want to save time getting to shore? (A) the one off to the right (B) the one off to the left
Example Output: B

Example Input: Sentence: The Moon has less mass then the Earth. Question: Which body emits a weaker gravitational field? (A) Moon (B) Earth
Example Output:
A