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

How to finish pine floors
Clean all dust and debris from the floor.
The pine flooring should be completely clean of all dust, dirt, and small rocks. Depending on the size of your flooring, run a damp mop or a rag over the surface of the floor.

Choices:
(a). If you have hardwood floors, sweep or dust thoroughly each surface. If you have wood floors, vacuum and remove all dirt, buildup, and debris.;
(b). You may want to remove any fallen snow or grit from your floor. Some pine flooring may flake or crumble when you clean it with pine floor cleaner.;
(c). Vacuum the surface of the floor, dusting in the " bathroom " area as well. This can clean up any remaining dust that may have collected during the cleaning process.;
(d). Make sure to clean in the corners of the room and remove dust from any nooks or crannies. If your floor has just been installed, it won't be covered in outside dirt.;
(d).