Please choose the correct ending to complete the given sentence: Walking the dog: A man leans over the camera he has placed on a dog. the dog

Ending1: runs through different rooms of the house, then to the door and outside. Ending2: jumps up high and looks behind the man in gym shorts. Ending3: stands up walking to his owners. Ending4: does an attempt to bite the man.

Answer format: ending1/ending2/ending3/ending4