Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to clean a bathroom sink [title] Wipe down the sink. [step] Take a clean, wet cotton cloth or dish sponge and wipe down the interior of the sink. Try to get as much debris and grime as you can.

Ending1: You can use professional glass cleaner if you can find one at home. [substeps] Before cleaning the sink, do some preliminary cleaning, where you wipe down the inside of the sink itself. Ending2: [substeps] Make sure to wipe around the drain. If your sink is especially dirty, you may need to switch out for a fresh cloth. Ending3: Wipe down the base and the insides, as well. [title] Inspect the water lines, the deep bottom of the sink, and the drain. Ending4: Make sure to wipe down the entire sink thoroughly. [title] Rinse the entire sink using a cleaner.

Answer format: ending1/ending2/ending3/ending4