Please choose the correct ending to complete the given sentence: Welding: A person wearing safety gear holds a metal rod with a clamp. Then, the person weld on a surface. smoke

Ending1: is issued after the metal rod is breach. Ending2: then flashes from the metal rod. Ending3: comes form the clamp. Ending4: escapes from the fish ring, then smoke gets come from a hole in the middle of the fish ring.

Answer format: ending1/ending2/ending3/ending4