Please choose the correct ending to complete the given sentence: Welding: Man is welding a machine in a dark room. Man is welding a metal pot and smoke is spreading out of the pot. man

Ending1: is holding a rake and spreading the steel on the metal pot. Ending2: is wearing welding mask in a dark room welding something. Ending3: is welding a metal door and smoking a pipe. Ending4: blow the smoke through a hose and it is tied in a brown bag.

Answer format: ending1/ending2/ending3/ending4