Which fire class specifically deals with combustible cooking oils and fats?

The correct choice, which addresses the specific fire class for combustible cooking oils and fats, is Class K. This classification is significant because Class K fires primarily involve cooking mediums such as oils and fats that are often found in kitchens. These types of fires differ from other classes of fires by their chemistry and the manner in which they spread.

Class K fire extinguishers are specially designed to handle the unique challenges that arise from cooking oils igniting, utilizing extinguishing agents that can effectively cool the burning oils and prevent re-ignition. Understanding the appropriate fire class is crucial for firefighters to respond effectively and safely when dealing with kitchen fires.

Class A, B, and C fires refer to different materials: Class A involves ordinary combustibles like wood and paper, Class B involves flammable liquids and gases, and Class C pertains to electrical fires. Although these are important classifications, they do not specifically cover the hazards posed by cooking oils and fats, which is why they are not the correct answer in this context.