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: Every object has gravity. Jupiter is the largest planet in the solar system. Question: Which object has a weaker gravitational pull? (A) Moon (B) Jupiter
Moon

Sentence: Frank was dragging a heavy log across the yard. His twin brother Fred was dragging one that weighed only half as much. Question: When the work was through, who had lost more perspiration? (A) Frank (B) Fred
Frank

Sentence: Roni was playing with a beach ball at the beach. She noticed that when she rolled the ball on the sand, it traveled slower than when she rolled it on the wooden boardwalk. Question: Which surface provides more resistance? (A) sand (B) boardwalk
sand