Multi-select problem: How does the next paragraph end?

A person is seen standing in front of a picnic table speaking to the camera while holding a bike wheel. he

Choose your answer from:
[a]. then mounts the bike while still speaking to the camera.;
[b]. buttons the bike up and adjusts the seat while looking over to the camera and smiling.;
[c]. then puts the tire on the ground, moving his hands around the make sure the tire is properly inflated.;
[d]. braces himself and rides around in a tight bend on the wheel while others watch on the side.;
[c].