Please choose the correct ending to complete the given sentence: Welding: Man is hammering a fence on a side of the workshop. Man kneeling in the floor is welding a metal fence. two men

Ending1: are standing next to the fence on stilts. Ending2: are wearing adhesive artwork on their bodies. Ending3: are in a workshop welding and hammering pieces. Ending4: are holding welding a metal on the camera.

Answer format: ending1/ending2/ending3/ending4