Given the task definition and input, reply with output. 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 bounce a rubber ball. They drop a first ball onto concrete, a second ball onto snow, a third ball onto foam, and a fourth ball onto carpet.<sep>group: bouncing

question: Which ball bounces the highest?<sep>A: snow<sep>B: foam<sep>C: carpet<sep>D: concrete