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 option for the given question. Write down the answer index: 'A' or 'B'.

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: A
Why? Typically, people with thin frail legs squat less weight than people with big strong legs, so the answer is A.

New input: Sentence: A boy slid in the mud, after walking across the grass yard with no problem. Question: Which had more resistance? (A) mud (B) grass
Solution:
B