Multi-choice problem: Continue writing the next sentence in this paragraph:

A guy walks under a horse fence. A person leads a horse. The guy gets on top of the horse. the guy

Choices:
(1). uses a round brush to clean off the horse's hooves.;
(2). gets off the horse.;
(3). ties a he poster on the horse.;
(4). pats the horse and goes horseback riding.;
(4).