Which of the following is a component of fire?

• A. Fuel
• B. Supply of oxygen
• C. Source of heat
• D. All of the above

Answer: (D)

Fire needs three elements to exist: fuel, oxygen, and heat. These form the fire triangle. Fuel is any combustible material, oxygen is the oxidizer in the air, and heat is the energy that keeps the reaction going and reaches ignition. If any one of these is removed or reduced below the ignition point, the fire can no longer continue. That’s why safety measures focus on removing fuel sources, limiting or separating oxygen, or cooling the material to below its ignition temperature. In a home health care setting, understanding this helps you prevent fires and respond effectively, whether you’re handling appliances, candles, or cooking tasks. Therefore, the correct choice is the one that reflects all three essential components.