This is a test of commonsense with single/multi-choices. Complete the next sentence:

How to clean a kilim rug
Sweep both sides of the rug to remove loose debris.
Before cleaning the rug, you want to make sure that there isn't any dirt or dust on its surface. Run a broom over the entire surface of the rug, and then flip it over to brush the other side as well.

(1). Remove any twigs, leaves, fur, or other debris from the rug. Cleaning the rug with a vacuum will remove surface debris, such as stray hair and clutter..
(2). This will help remove any debris or dirt that has collected on the rug, and make it easier to clean properly. Deal with mats as much as possible..
(3). When you're finished, the rug should look totally clean. If you find that your rugs have collected a lot of dirt, or that you're having to go over them again, rub mud over them with a soft cloth to free any excess mud or dirt..
(4). The carpet should be on a flat surface to make the cleaning process easier. You can use any broom to clean the rug, but a hand broom, which is essentially a handheld brush with bristles that are long like a traditional broom, offers the most control..
The answer is:
(4).