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: Sliding a shirt across the floor makes it heat up less then sliding it across the bed. Question: This means that the shirt can slide a greater distance across which surface? (A) bed (B) floor

SOLUTION: floor

PROBLEM: Sentence: Mary has always been weaker then Jimbo. Question: Which person is able to throw a ball farther? (A) Jimbo (B) Mary

SOLUTION: Jimbo

PROBLEM: Sentence: Major Tom, an astronaut, used to jump up and down on Earth, and he never got higher than a meter in the air.  When his ship landed on Ceres, he jumped up and kept going and going higher and higher. Question: Why? (A) Earth has greater mass (B) Ceres has greater mass

SOLUTION:
Earth has greater mass