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: Neptune has a greater mass then Pluto. Question: Which planet emits stronger gravitational waves? (A) Neptune (B) Pluto
Example Output: A

Example Input: Sentence: Graviton is twice as massive as Thanos. Question: Which will exert more of a pull on atoms? (A) Graviton (B) Thanos
Example Output: A

Example Input: Sentence: Rachel took a photo of her friend in Paris with the Eiffel Tower, and it appears like her friend is just as tall as the tower. Question: How could that be? (A) the friend is further away from the camera than the tower (B) the friend is closer to the camera than the tower
Example Output:
B