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.

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
moon of Saturn