Please choose the correct ending to complete the given sentence: Welding: A man is seen wearing a helmet and kneeling down in a large room. Uses a torch on an object while another person walks into frame. in the end

Ending1: the man points towards a window and begins building a fire. Ending2: several more scenes of fire are shown. Ending3: he zooms in on the object he torched. Ending4: a person is seen using a hand held broom and begins shining off the floor.

Answer format: ending1/ending2/ending3/ending4