Please choose the correct ending to complete the given sentence: Mooping floor: We see a bucket which rings a round mop without touching it. A lady changes the mop head with her foot. three ladies

Ending1: give endorsements and we see them using the mop. Ending2: talk in front of the camera. Ending3: stand in front of a buddha statue. Ending4: then begins to mop the floor while the left lady balances on the mop held by her left hand.

Answer format: ending1/ending2/ending3/ending4