You will be given a definition of a task first, then an example. Follow the example to solve a new instance of the task.
Creating a multiple-choice question from the given context and a 'group' which indicate the focus of the question. The question must come first, separated by <sep> from the candidate answers. The answer to the question does not have to exist in the context.

context: A person is trying to roll an apple, a ball, a block, and a bottle. <sep>group: rolling
Solution: question: Which is the hardest to roll? <sep>A: apple 	B: ball 	C: block 	D: bottle
Why? The MCQ question is asked regarding rolling of the objects and options of the question are present in the context.

New input: context: A person is trying to bounce a rubber ball. They drop a first ball onto steel, a second ball onto grass, a third ball onto leaves, and a fourth ball onto carpet.<sep>group: bouncing
Solution:
question: Which ball bounces the highest?<sep>A: steel<sep>B: grass<sep>C: leaves<sep>D: carpet