What is the most logical next event?

Man is standing in front of a white cloth in a studio doing exercise in an elliptical machine showing the characteristics of the bike. woman

Possible answers:
(a). is doing the same that the man, watching the elliptical and doing exercise.
(b). is riding the bike with outro intro and the screen name.
(c). is sitting on front of a cup and is standing in the elliptical machine.
(d). stand courtroom talking in a stationary bike doing exercise in an elliptical machine.
(a).