Please choose the correct ending to complete the given sentence: Calf roping: People are walking in front of a white fence. behind the fence

Ending1: a man is riding a horse. Ending2: a dog is walking with a leash. Ending3: people are standing in a field caring hockey sticks. Ending4: people are wearing helmets on and trying to work out.

Answer format: ending1/ending2/ending3/ending4