This is a test of commonsense with single/multi-choices. Complete the next sentence:

Two people are seen sitting before a wave pool and one leads another out onto the water on a board. the person

pick from the following.
[I] falls when another attempts to ride the board on the water.
[II] continues to play with the girl and herself.
[III] continues pushing and eventually throws off a large wave and they all cheer.
[IV] goes over the side and another shows up on the side with the same person holding a dog close to their chest.
The answer is:
[I]