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

A man on the dock hands a rope to a water skier. a

Choices: (I) man on a horse is tied to a rope and the water skier takes off.. (II) skier dives into the ocean, hitting a wave and reeling up immediately.. (III) group of people hold a boat up to the dock as they raft down water like a child.. (IV) person water skis and does jumps over ramps in the water of a lake..
The answer is:
(IV)