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

An introduction comes onto the screen for a rollerskating video. a man

(A). comes onto the screen talking about skating in some motocross park.. (B). is shown lifting a gym bar over his head and dropping it in front of him several times.. (C). talks about the best practices to prepare to roller skate.. (D). skates down the street with just his skates, wearing only underwear and skating..
(C).