Given the task definition, example input & output, solve the new input case.
The task is about reading the given context, group and MCQs and then generating answers from the given input. MCQs are multiple choice questions in which a question is asked and few options are given, among which one or in some cases more than one can be the answer.
Example: context: A person is trying to stack flowers, eggs, balls, and books.<sep>group: stacking <sep>question: Which is the easiest to stack?<sep>A: flowers<sep>B: eggs<sep>C: balls<sep>D: books
Output: Books are the easiest to stack.
The answer relates to stacking which is mentioned in the group in the input.

New input case for you: context: A person is trying to bounce a rubber ball. They drop a first ball onto steel, a second ball onto snow, a third ball onto foam, and a fourth ball onto grass.<sep>group: bouncing <sep>question: Which ball bounces the highest?<sep>A: snow<sep>B: foam<sep>C: grass<sep>D: steel
Output:
The ball dropped onto the steel bounces the most times.