Please choose the correct ending to complete the given sentence: Mooping floor: A person mops the floor while a dog chase the mop. the person

Ending1: spins around the mop and the dog also spins. Ending2: vacuums the floor and ends the video by turning off the camera. Ending3: walks into the living room and sits down on the floor. Ending4: rooms a woman with a video camera.

Answer format: ending1/ending2/ending3/ending4