Final answer:
A Class A fire extinguisher cannot be used on a grease fire in the kitchen.
Step-by-step explanation:
A Class A fire extinguisher is not suitable for use on a grease fire in the kitchen. It is designed to extinguish fires involving ordinary combustible materials such as wood, paper, and cloth. Grease fires in the kitchen are primarily classed as Class K fires, which require a specific type of fire extinguisher designed for fires involving cooking oils and fats.
Learn more about Class A fire extinguisher