pick from the following.
a). Take the entire surface area of the wall in a dust proof bucket and rinse it off with warm, soapy water. Sweep out the dirt, dust and any grit.
b). In the end, you might create textures you don't want to create. Clean by : Removing any dust, pet hair, or other grime from the surface.
c). Aim for a clean surface, and let the surface dry. If you choose to do a cleaning on a dry surface, you should set up a dust cloth near a window so it can catch any dust that may collect there.
d). Every stain or stain that you brush onto the wall should be cleaned and washed to keep the paint from washing away. Whether you use a tack brush for bigger areas or a sponge for smaller areas, dirt and oils will simply accumulate on the surface.Choose from options above and answer: What most naturally follows?

How to hide wall flaws with textured paint
Clean the surface.
Before applying any paint to a damaged wall, you need to clean the surface. If you don't clean the surface, your paint job won't be as effective as you want it to be.
Answer:
b).