You are given a sentence, a question and two answer options. Your task is to write down the index ('A' or 'B') of the **incorrect** option for the given question.

Example Input: Sentence: An asteroid is flying through space and is halfway between Saturn and one of its moons. The moon is very small in mass compared to Saturn. Question: Which body will be less likely to pull the asteroid into its orbit? (A) Saturn (B) moon of Saturn
Example Output: A

Example Input: Sentence: An average 10 year old boy and an average 15 year old boy throw a football. Question: Which boy will throw the football the shortest distance? (A) 10 year old boy (B) 15 year old boy
Example Output: B

Example Input: Sentence: The mass of Mars is less than the mass of Neptune. Question: If a brick is dropped from 1 mile up on each planet, where will it fall the fastest? (A) Mars (B) Neptune
Example Output:
A