Why is LPG stored as a liquid under pressure inside domestic cylinders, but exits the burner nozzle as a gas?

Options:

• A: The high pressure inside the cylinder keeps the butane-propane mixture liquefied; when released to atmospheric pressure, its boiling point is lower than room temperature, causing immediate vaporization.
• B: The pressure inside the cylinder is lower than atmospheric pressure, keeping it liquid, while the burner nozzle increases pressure to vaporize it.
• C: A chemical catalyst at the cylinder valve endothermically converts the liquid hydrocarbons into gaseous isomers upon release.
• D: The liquid LPG undergoes thermal cracking at the burner tip due to the heat of the ambient air, converting it into lighter gaseous alkanes.

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