Which extinguishing agent is most likely to allow reflash as a result of not cooling the fuel below its ignition temperature?

Correct Answer: Option D — CO2

Under USCG Deck Safety, SOLAS Chapter III, and 46 CFR regulations, when addressing 'Which extinguishing agent is most likely to allow reflash as a result of not cooling the fuel below its ignition temperature', the mandated standard is: 'CO2'.