The most effective extinguishing agent for a fire involving vegetable cooking oil is a wet chemical extinguisher. Wet chemical agents form a protective layer over the oil, cooling it down and preventing re-ignition. Other agents like dry chemicals or CO2 are not suitable for these types of fires. ;
The most effective extinguishing agent for a fire involving vegetable cooking oil is a wet chemical extinguisher, as it creates a film that cools the oil and prevents re-ignition. Other agents, like dry chemical powders and CO2, are not suitable for these types of fires. Therefore, the chosen multiple choice option is C. Wet chemical.
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