Please choose the correct ending to complete the given sentence: Installing carpet: The men then add gray carpet to the floor and a man vacuums. We switch and see them rip up and lay new carpet from another angle. we

Ending1: switch and see the process to cleaner the floor. Ending2: watch wet carpet being spread in a towel. Ending3: see a woman makes a batch over 14 old carpet. Ending4: see a man vacuuming the new carpet.

Answer format: ending1/ending2/ending3/ending4