Please choose the correct ending to complete the given sentence: Welding: A boy enters the scene and pulls on a pair of gloves while wearing a sports protective mask, turns on a blue machine on the back steps and picks up a solder. the boy

Ending1: then begins to solder a disassembled bicycle on the ground in a backyard. Ending2: and his father crank up the generator and remove the solder. Ending3: demonstrates to tattoo himself with the solder using a tattoo gun. Ending4: is seen welding a machine and turning off the machine before reputting it.

Answer format: ending1/ending2/ending3/ending4