Please choose the correct ending to complete the given sentence: Welding: A man is begining to weld. He starts to weld a piece of metal onto a frame. he

Ending1: twists his hands in front of the welded metal at which point it makes a hole which he weld with a tool. Ending2: uses pliers on the welding machine while he weld it. Ending3: finishes his weld and backs away. Ending4: then weld until the metal is ready to weld.

Answer format: ending1/ending2/ending3/ending4