Write the next sentence in the following story.

Woman is talking to the camera in front of a large gym with a lot of estatic bikes in the background and people doing exercise. girl

Pick your answer from: (a). is doing sit ups and jumping hoid a pink rope.; (b). is doing black riding on the exercise machine in the corner.; (c). start doing exercise in the elliptical bike.; (d). is in studio slackline in the workout room closeup, the woman is showing the form of the machine then demonstrates how to use it.;. The answer should be
(c).