Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to restore black plastic [title] Wash and dry the plastic's surface. [step] The olive oil will absorb best into a clean surface. If your plastic object is dirty, wash it with soap and warm water.

Ending1: Avoid cutting the caulk from areas that absorb too much oil or too little water. Rinse all parts of the object with cool, soapy water when you're done. Ending2: Dry the affected piece of plastic on top of a clean surface and then gently sand it with a coarse sandpaper. This will remove any rough edges that might affect performance as you clean it later. Ending3: Dry it off with a towel before restoring it to prevent the olive oil from slipping off. [title] Pour a coin-sized amount of olive oil on a cloth. Ending4: If your plastic object has a stain or become discolored, dry it off first with a damp cloth. [title] Place olive oil into a small bowl.

Answer format: ending1/ending2/ending3/ending4