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

A camera and logo appear briefly. a person

pick from the following. (a). is seen riding down stairs on roller blades and music playing in the background.. (b). then follows a girl followed by several more stills.. (c). adjusts the camera in the mirror.. (d). wake boards on a lake while being towed..
The answer is:
(d).