Please choose the correct ending to complete the given sentence: Cleaning sink: A person pours vinegar in a sink on a towel. the person

Ending1: then uses the towel to rub the surface of the sink. Ending2: uses a metal bowl to rub down the sink. Ending3: sharpellates a pair of scissors on a cutting board. Ending4: washes dishes in a sink filled with water.

Answer format: ending1/ending2/ending3/ending4