You will be given a definition of a task first, then an example. Follow the example to solve a new instance of the task.
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: Jacob and Benny are squatting at the gym. Jacob has thin frail legs and Benny has big strong legs. Question: Who squats less weight? (A) Jacob (B) Benny
Solution: Jacob
Why? Typically, people with thin frail legs squat less weight than people with big strong legs, so the answer is Jacob.

New input: 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
Solution:
sand