Multi-choice problem: Continue writing the next sentence in this paragraph:

A man is standing in front of a white screen. He is talking about the saxophone in his hands and showing the proper hand positions. he

pick from the following. [I] keeps showing the saxophone displaying the proper way to play the instrument. [II] demonstrates how to play the instrument. [III] then demonstrates how to play the saxophone. [IV] then shows the different parts of the saxophone as he goes.
[II]