Which of the following statements BEST describes circuit training? A. Circuit training sessions vary in length. B. Circuit training is a program that moves through a prescribed set of exercises. C. Circuit training is a program that alternates between intense exercise and rest periods. D. Circuit training sessions take place in different locations.

Karen is waiting by the lockers before school for her friend richard. they had agreed to look over the history review sheet together to be ready for the test later that day. richard shows up late with uncombed hair and wrinkled clothes. karen: "you're five minutes late and you look like a wreck! " richard: (slams his locker) "you know, i don't have time for this." karen: "fine! figure out the test on your own! "