What happens next in this paragraph?

Three people are seen kneeling on a small raft and flip themselves into the water. more people
pick from the following.
[I] are shown rafting through the water performing tricks and wet stunts.;
[II] are seen climbing through the water as well as forming a raft and swimming.;
[III] are seen padding along and move over to the people in the water.;
[IV] are seen performing flips into the water and gesturing to the camera while rowing.;
[III]