Please choose the correct ending to complete the given sentence: Horseback riding: A guy walks under a horse fence. A person leads a horse. The guy gets on top of the horse. the guy

Ending1: uses a round brush to clean off the horse's hooves. Ending2: gets off the horse. Ending3: ties a he poster on the horse. Ending4: pats the horse and goes horseback riding.

Answer format: ending1/ending2/ending3/ending4