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.

[EX Q]: context: A person is trying to bounce a rubber ball. They drop a first ball onto concrete, a second ball onto foam, a third ball onto steel, and a fourth ball onto rubber.<sep>group: bouncing
[EX A]: question: Which ball bounces the least?<sep>A: concrete<sep>B: foam<sep>C: steel<sep>D: rubber

[EX Q]: context: Four people are walking at identical speeds. The first walks around a microwave, the second walks around a table, the third walks around a car, and the fourth walks around a house.<sep>group: circumference
[EX A]: question: Which takes the shortest amount of time to walk around?<sep>A: microwave<sep>B: table<sep>C: car<sep>D: house

[EX Q]: context: A person drops a mirror, a pen, a coin, and a shirt from a balcony.<sep>group: breaking
[EX A]:
question: Which object is the most likely to break?<sep>A: mirror<sep>B: pen<sep>C: coin<sep>D: shirt