Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to erase old marks off a dry erase board [title] Use rubbing alcohol. [step] Wet a sponge with alcohol and rub it into the stain. Dry the board with a clean, dry cloth.

Ending1: If you've covered the wood panel with an oil-based stain, use an enzyme cleaner to remove those last few stain-removers. [title] Block the stained area using wood filler. Ending2: Use 99% or 90% isopropyl rubbing alcohol for the best results. [substeps] You can put rubbing alcohol directly on a paper towel or tissue and rub that on the old marks. Ending3: [substeps] Other abrasive spirits may also work for your stained mark. Cleansing spirits such as glass cleaner, microfiber cloths, soap, or cider vinegar can also work for your stain-removing agent. Ending4: If you can find rubbing alcohol in the hardware store, it is relatively safe to use. No scratch remover will remove ink, but a bit of rubbing alcohol may find stubborn dirt or clumps and clean up a crack in the border.

Answer format: ending1/ending2/ending3/ending4