When fighting an oil or gasoline fire, which of the listed fire extinguishing agents should NEVER be sprayed directly into the fire?

Correct Answer: Option A — Dry chemical

Dry chemical agents should not be sprayed directly into burning liquid pools because the high-velocity stream can splash the fuel, spreading the fire. Instead, the agent should be applied by sweeping the base of the flames, allowing the chemical powder to create a cloud that interrupts the combustion chain reaction.