Please choose the correct ending to complete the given sentence: Vacuuming floor: Two fingers turn a silver knob clockwise on a vacuum cleaner. the person

Ending1: uses the vacuum cleaner to clean the carpet. Ending2: turn the vacuum cleaner on and stops when the knob turns. Ending3: pushes the emergency button with their foot. Ending4: remove and replace the vacuum on the wall.

Answer format: ending1/ending2/ending3/ending4