You will be given a definition of a task first, then some input 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 bounce a rubber ball. They drop a first ball onto leaves, a second ball onto rubber, a third ball onto brick, and a fourth ball onto concrete.<sep>group: bouncing
Output:
question: Which ball bounces the least?<sep>A: leaves<sep>B: rubber<sep>C: brick<sep>D: concrete