Please choose the correct ending to complete the given sentence: Welding: A man puts on welding safety gear. The man starts welding something on a metal table. he

Ending1: stands up and looks outside. Ending2: stops welding, lifts his face mask and adjusts things in the table. Ending3: stops welding, blowlers the object on the table, pulls off his helmet, ejects his oxygen tank and stands up. Ending4: puts his helmet back on and stands up and demonstrates what he is doing.

Answer format: ending1/ending2/ending3/ending4