TASK DEFINITION: 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.
PROBLEM: Sentence: Each planet has a substantial gravitational pull. Uranus bigger than earth but still much smaller than the sun. Question: Which object has a weaker gravitational pull? (A) Sun (B) Uranus

SOLUTION: Uranus

PROBLEM: Sentence: Belle has two horses; a grey one and a white one. The grey one is fat, the white one is thin. Question: When racing, which horse will get up to speed more quickly? (A) white horse (B) grey horse

SOLUTION: white horse

PROBLEM: Sentence: Tom accidentally knocks a clay pot and a metal pot off of a shelf. Question: Which pot is less likely to break? (A) Clay pot (B) Metal pot

SOLUTION:
Metal pot