Teacher: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.
Teacher: Now, understand the problem? Solve this instance: context: A person is trying to bounce a rubber ball. They drop a first ball onto concrete, a second ball onto rubber, a third ball onto carpet, and a fourth ball onto steel.<sep>group: bouncing
Student:
question: Which ball bounces the least?<sep>A: concrete<sep>B: rubber<sep>C: carpet<sep>D: steel