Please choose the correct ending to complete the given sentence: Using the rowing machine: . a close up of a piece of exercise equipment

Ending1: is seen followed by a man walking up and begins speaking to someone. Ending2: is shown followed by a person spinning around and throwing the object. Ending3: is shown followed by a person stepping into frame and sitting on the machine. Ending4: is shown with a person standing on the side leading into a styling brush.

Answer format: ending1/ending2/ending3/ending4