Please choose the correct ending to complete the given sentence: Using the rowing machine: A man is seated at equipment inside a gym. He is using a rowing machine and he talks about it. he

Ending1: sits on it and pushes back and forth. Ending2: hits the machine and it starts up while he continues to talk. Ending3: continues to talk as the screen is black. Ending4: pushes the machine by pulling on a strap and the machine situates itself.

Answer format: ending1/ending2/ending3/ending4