Final answer:
Dry cleaning is the safest method for cleaning a sisal rug, as wet cleaning methods can cause damage. Dry cleaning uses solvents to remove stains without the use of water, preserving the natural texture and appearance of the rug. correct answer is 4.
Step-by-step explanation:
The safest cleaning method for a sisal rug is dry cleaning. Sisal rugs are made from natural fibers that are sensitive to moisture, so wet cleaning methods can cause shrinkage, discoloration, and damage to the rug.
In dry cleaning, solvents are used to remove stains and dirt from the rug without the use of water. This method is gentle and effective for cleaning sisal rugs without causing any harm to the delicate fibers.
Another advantage of dry cleaning is that it minimizes the risk of mold and mildew growth, which can be a concern with wet cleaning methods. The dry cleaning process also helps to preserve the natural texture and appearance of the sisal rug. Dry cleaning uses solvents to remove stains without the use of water, preserving the natural texture and appearance of the rug.