Which type of fire extinguisher is suitable for flammable liquids?

The suitability of a fire extinguisher for flammable liquids is determined by its classification. In this case, Class B fire extinguishers are specifically designed to handle fires that involve flammable liquids such as gasoline, oil, paint, and solvents. These extinguishers effectively smother the flames or remove the heat, which is crucial for controlling and extinguishing liquid-based fires.

Class A extinguishers are intended for ordinary combustible materials like wood, paper, and cloth. Class C extinguishers are designed for electrical fires, and Class D extinguishers are meant for combustible metals. Since each class addresses different types of materials, using the appropriate extinguisher is vital for safety and effectiveness during a fire incident. Class B is the correct choice for addressing flammable liquid fires, making it the best option in this scenario.