When fighting a liquefied natural gas fire, you should __________.

Correct Answer: Option A — secure the source of gas, then extinguish the fire

Extinguishing an LNG fire without stopping the fuel source creates a dangerous vapor cloud that can lead to a catastrophic explosion. The priority must always be to secure the flow of gas first, then extinguish the remaining fire, as per standard maritime safety protocols for handling cryogenic liquid hazards.