What happens next?

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

Possible answers:
(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).