Please choose the correct ending to complete the given sentence: Cleaning sink: The boy turns on the sink faucet. The child uses the faucet nozzle to rinse out the sink. the boy

Ending1: puts his head under small tap running water. Ending2: uses the pump again to rinse out the sink. Ending3: drains the water using a paper towel. Ending4: returns the sink nozzle to the faucet and turns off the water.

Answer format: ending1/ending2/ending3/ending4