Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to paint a popcorn ceiling [title] Test the ceiling's water solubility. [step] To figure out the best way to paint a popcorn ceiling, you need to know if it's ever been painted before. A popcorn ceilings that hasn't been painted previously is usually water-soluble.

Ending1: If you paint it with a roller, the ceiling may absorb moisture from the paint and the texture can come off on the roller. Test your ceiling's water solubility by spraying a small, unnoticeable spot with water. Ending2: If you have any problems removing the decal, you should try a dry cleaning. [substeps] A dry cleaning will reduce the weight of the first coat, which can cause the paint to fall off, leaving your ceiling looking fraky. Ending3: [substeps] There are two main types of popcorn ceilings: textured, and painted. Textured ceilings have become more common in recent years, usually because they are more absorbent and have aged. Ending4: Make sure that the ceiling is completely dry before touching any of the exterior walls to ensure that you're going to get the best results. [substeps] If you mess up your test line in the first place, start over.

Answer format: ending1/ending2/ending3/ending4