Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to clean a sticky iron [title] Rub your iron with a rag dampened with water first, if desired. [step] If the stickiness on your iron is minimal, opt for this gentle method first. Heat your iron slightly on a low setting.

Ending1: If it's an older iron-meaning it can handle slightly less heat-it's best to use a dampened rag. [substeps] If you use a cloth that's more porous, remember that the more heat you add to the iron, the more concentrated your cleaning will be. Ending2: Wet a rag with water so that it's damp, not dripping. Unplug the iron before scrubbing it with the rag. Ending3: Once the iron is heated up, you can quickly wipe off the sticky iron film on your iron. If the film sticks, let it set for a couple minutes to soften it up. Ending4: [substeps] You could also use a lint-free cloth instead of a towel to dry the iron faster. [title] Submerge the iron in cold or room temperature water.

Answer format: ending1/ending2/ending3/ending4