Please choose the correct ending to complete the given sentence: Cleaning sink: A brush is attached to a power drill for scrubbing. the top of the sink

Ending1: is rinsed off. Ending2: is wet and the machine is being rubbed dry with the brush. Ending3: is scrubbed then the bowl. Ending4: appears on a panel of the soap.

Answer format: ending1/ending2/ending3/ending4