Please choose the correct ending to complete the given sentence: Cleaning windows: A city view is seen from a skyscraper. Two men are shown cleaning windows on the side of the building. they

Ending1: break them down with a hammer and give the window a decent repair. Ending2: do the same again to improve their skills. Ending3: squeegee and wipe down the glass professionally. Ending4: are using a vacuum cleaner.

Answer format: ending1/ending2/ending3/ending4