Final answer:
Cloth napkins can be used in contact with food when they are made of a specific fabric and maintained with proper hygiene practices. The correct answer is c)
Step-by-step explanation:
Cloth napkins can be used in contact with food when they are made of a specific fabric that meets certain standards for cleanliness and safety. For example, cloth napkins made of 100% cotton or linen are often considered safe for food contact as long as they are washed in hot water and detergent between uses. These fabrics have natural antimicrobial properties that can help prevent the growth of bacteria.
It is important to note that cloth napkins should always be washed regularly to maintain cleanliness, and any stains or spills should be promptly treated to prevent contamination. Using cloth napkins in contact with food can be a more sustainable and environmentally friendly option compared to disposable paper napkins, but proper hygiene practices must be followed to ensure food safety.