Please choose the correct ending to complete the given sentence: Welding: A man is wearing a mask inside a workshop. He is using welding equipment on a metal horse. sparks

Ending1: fly as the metal moves against the horse. Ending2: fly as sparks fly from the welded piece of metal. Ending3: fly as he moves the metal around. Ending4: fly everywhere as he continues to weld.

Answer format: ending1/ending2/ending3/ending4