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

An introduction comes onto the screen about a video showing how to triple jump. A guy is shown running down a track making a jump. the jump

Available options:
[A]. shows him backflipping through multiple jumps on his dives.
[B]. is shown again in slow motion and then female competitors are shown doing the same.
[C]. is shown again in slow motion for better understanding.
[D]. is made and the crowd cheers.
The answer is:
[C].