Please choose the correct ending to complete the given sentence: Using the rowing machine: A man speaks to the camera while another man sits on a piece of exercise equipment behind him. The instructor continues moving around near the man and has him show how to machine works. he

Ending1: points to his body showing the muscles worked and walks around the man exercising. Ending2: positions the man and used his back to show how he machine works. Ending3: then sets him around on the machine and begins to take off his clothes and all to demonstrate how to properly do a back flip. Ending4: has the man pivot on the machine for him to do the same.

Answer format: ending1/ending2/ending3/ending4