What type of extinguishers are used for Class A hazards?

Class A hazards involve ordinary combustible materials such as wood, paper, cloth, and some plastics. The use of water type extinguishers is effective for these materials because water works to cool and extinguish the flames. Multipurpose dry chemical extinguishers can also be used as they are effective on a variety of fire types, including Class A, by interrupting the chemical reaction of the fire. Wet chemical extinguishers are particularly relevant for Class A hazards and are especially useful with cooking oils and fats in kitchens.

Thus, the correct answer encompasses all these types of extinguishers that are effective in addressing Class A fire hazards, making it a comprehensive solution for various combustible materials.