Please choose the correct ending to complete the given sentence: Polishing forniture: A man cleans a small board of wood with a cloth in a workshop. then

Ending1: , the man opens a box and remove a blue plastic bag. Ending2: , the man uses flannel to polish the wood board thoroughly. Ending3: , the man makes a rod with sparks, and then goes around the wooden panel. Ending4: , a man shows what someone used to sharpen a knife.

Answer format: ending1/ending2/ending3/ending4