OPT:
[i] are seen wave and get further into the water as well as stop and hug one another.;
[ii] are then shown growing up with tubes around them and seeing more people riding.;
[iii] are seen bringing the tubes up the hill and beginning to ride down.;
[iv] float down the hill carrying tubes and zoom in on others.;Choose from options above and answer: What most naturally follows?

Several shots are shown of people riding in tubes as well as one grabbing one and dragging it up a hill. people
Answer:
[iii]