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.
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
A: 
question: Which takes the shortest amount of time to walk around?<sep>A: microwave<sep>B: table<sep>C: car<sep>D: house