Please choose the correct ending to complete the given sentence: Cleaning shoes: A man shows a boot and shining tools. Then, the man cleans the shoe with a cloth. after

Ending1: , the chain is suspended, then the man welds the chain, after the man shows displaying shoes on the chain. Ending2: , the man showed a foot and use the coat of the boot. Ending3: , the man points the tip of the shoe and applies black paint and shows insoles. Ending4: , the man bunds the small pole of the boot and shows polish.

Answer format: ending1/ending2/ending3/ending4