At One Moment in 2001: a Space Odyssey (1968), a Cut

At one moment in 2001: A Space Odyssey (1968) , a cut causes an abrupt transition between a shot of a bone thrown in the air by a primitive prehuman and a shot of a spaceship. This cut is shocking and unusual because

A) it signals a shift between radically different genres.
B) it implies an immense period of elapsed time.
C) it implies a barely perceptible period of elapsed time.
D) the shots possess no connection whatsoever.
E) the bone turns suddenly into a spaceship.