Please choose the correct ending to complete the given sentence: Walking the dog: A a white dog without the use of its hind legs is outside with its owner on the porch. they

Ending1: begin to walk down the driveway as the camera follows them. Ending2: are in various environments including by the sea, landscapes, and residential thick forests. Ending3: get inside and begin wandering around. Ending4: opened it's door and let it out so it could walk around.

Answer format: ending1/ending2/ending3/ending4