Please choose the correct ending to complete the given sentence: Welding: Man is welding a machine in a dark room. man

Ending1: is welding the metal throughout a workshop. Ending2: is welding a metal pot and smoke is spreading out of the pot. Ending3: is holding a logos and the news story online. Ending4: is wearing white goggles welding guns on a black board.

Answer format: ending1/ending2/ending3/ending4