Please choose the correct ending to complete the given sentence: Welding: A man bends down wearing a mask and starts welding. he

Ending1: then picks up the helmet and continues welding the surface. Ending2: stops and uses a tool to scrape what he just welded. Ending3: finishes and walks away in awe. Ending4: looks up at the camera and continues welding.

Answer format: ending1/ending2/ending3/ending4