Please choose the correct ending to complete the given sentence: Walking the dog: Two dogs wearing clothing run together up stairs. The two dogs are shown running together amidst crowds in several different locations while following a man. the man

Ending1: is then seen cutting his hair as well as shaving his head. Ending2: teaches one dog to pull another by the leash. Ending3: is instructing them, until rottweilers come in the background and run on the man's shoulders. Ending4: then picks up tiles and puts them down in an indoor gymnastic arena.

Answer format: ending1/ending2/ending3/ending4