Please choose the correct ending to complete the given sentence: Horseback riding: A horse's feet run by the camera. a woman

Ending1: is pictured holding several brushes. Ending2: stands on a montage of horses event. Ending3: is seen standing beside a horse and speaking. Ending4: puts on a pair of stirrups and pulls a calf into a stall.

Answer format: ending1/ending2/ending3/ending4