What is generally, the first action in extinguishing an Liquefied Gas fire caused by escaping gas?

Correct Answer: Option B — shut off the leak

Shutting off the leak is the most critical action in a liquefied gas fire. If the fuel source is not isolated, the gas will continue to accumulate, creating a severe risk of re-ignition or a massive explosion. Controlling the source is the fundamental principle of firefighting for gas leaks.