Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to get permanent ink off windows [title] Ventilate the area and put on plastic gloves. [step] Wd-40 is a strong chemical, so crack a nearby window or work in a well-ventilated area. Put on a pair of plastic gloves to protect your hands.

Ending1: Extinguish any flames nearby, such as candles. Wd-40 is highly flammable. Ending2: [title] Pour the wd-40 into the window and check the color with a microscope. [step] The marker may go dark or blotchy. Ending3: If you plan to paint your project, stand by the window. Before you begin painting, clean up any splatters or smudges you might have missed with a rag. Ending4: Then, wear a face mask as you scratch at the ink with a rubber band. [substeps] If you decide to wear a mask to remove the ink, finish scraping off the surface of the glass.

Answer format: ending1/ending2/ending3/ending4