Multi-choice problem: Continue writing the next sentence in this paragraph:

How to clean white walls
Get the room ready to clean.
Remove all artwork, pictures, or other items from a wall. Clear the space near the walls.

Available choices: [-] Set up a ladder in the center of the room. Any difficult steps down the ladder can cause serious injury to your feet.; [-] Do not wash and clean loose items; you'll have to do that later. Lay out some paper towels and the bag of flour, and put everything back in the bag.; [-] Line the walls with black butcher paper if you're new to the art form. Paper should be the size and shape of an envelope.; [-] Push furniture away from the walls, for example. As you'll be dusting, you should also cover your floor in a tarp to catch dust and debris as it falls.;
Push furniture away from the walls, for example. As you'll be dusting, you should also cover your floor in a tarp to catch dust and debris as it falls.