Please choose the correct ending to complete the given sentence: Welding: A graph illustrating the long arc of the tool documenting voltage and amperage. The tool is shown in real time emitting heat with a photo of a welded material. a graph

Ending1: leads into clips of people crouched and moving behind a mobile body of water. Ending2: is shown showing plutonium, alcohol and iron and retractors. Ending3: illustrates short arc with the voltage and amperage documented. Ending4: with the word " neolithic " describing the tool is located on the graph.

Answer format: ending1/ending2/ending3/ending4