Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to clean windows [title] Clean stubborn stains. [step] Outside windows are especially prone to stubborn stains because they are exposed to hard water runoff, minerals, bird droppings, and elements that can cake on dirt and grime. There are a few methods you can try to remove marks on inside or outside windows : [substeps] Use a mineral deposit removing cleaner, such as clr.

Ending1: Dirt is a mineral which is used to take out unwanted dirt and grime from inside windows. Dampen a cloth with a small amount of mineral deposit remover. Ending2: Install window cleaning cleaner or an anti-dust or chemical cleaner, such as windex. Wait a day after your window cleaning to clean the glass. Ending3: Wear gloves while handling pots and pans and use a broom to wash the inside and outside of windows. Try a solvent cleaner instead of a commercial cleaner, such as wd-40. Ending4: Dampen a sponge with cleaner and rub at the stains on the windows. Rinse the area with water and proceed with regular cleaning.

Answer format: ending1/ending2/ending3/ending4