Multi-select problem: How does the next paragraph end?

This man is in the public gym to workout and he is standing on the treadmill just walking. there

OPTIONS: (A). is also other people walking around farther around behind him. (B). are dodges and kickboxing movements doing the same moves as the man is. (C). is a man doing curves on the treadmill, after different scenarios are shown that he is doing crunches on the machine. (D). is a closeup of his starting position which includes legs and at times he lifts one leg to better balance on the treadmill.
(A).