Please choose the correct ending to complete the given sentence: Walking the dog: A wooden outdoors stair case is shown outside of a white and brown horse. all

Ending1: of a sudden, a black dog comes around the corner and trots up the stairs and multiple replays are shown. Ending2: of a sudden a man appears inside of the stable and rides in to check on the horse. Ending3: of a sudden starts moving and begins riding. Ending4: of a sudden, a person gallops to the horse and begin cutting the hair off the horse with a super regular electric clipper, a dunk pin, and some scissors to groom the horse.

Answer format: ending1/ending2/ending3/ending4