A "total immersion swimming" logo and "total immersion freestyle demo by shinji takeuchi" appear on screen. Takeuchi swims the length of an indoor pool. the video <sep> (A) ends with the subscribe's logo visible in a dark room. (B) then cuts to a man surfing under the water repeatedly. (C) ends with several captions visible in between. (D) changes to an underwater view of the takeuchi swimming.
D