Multi-choice problem: Continue writing the next sentence in this paragraph:

A man, alone in a room demonstrates two arm pulls with an elastic band attached to a white pole in a room, while he kneels on a blue gym mat. a man in grey shorts and black sneakers

Pick from:
+ shown showing flips in slow motion and on his knees as well..
+ practices arm pulls with an attached band while a young man in gray shorts joins him..
+ folds the free arm of the man dressed in the gym mat against the black pole..
+ kneels on a blue gym mat in the corner of a room and pulls and elastic band from behind him with his arms..
kneels on a blue gym mat in the corner of a room and pulls and elastic band from behind him with his arms.