The correct answer is C. Propane.
Liquefied petroleum gas (LPG) is a mixture of hydrocarbon gases, primarily propane and butane, that are liquefied under pressure. It is used as a fuel for cooking, heating, and transportation.
Methane is the simplest hydrocarbon and is the main component of natural gas. It is a colorless, odorless gas that is lighter than air. Methane is not used in LPG because it is too light to be easily stored and transported.
Ethane is a colorless, odorless gas that is slightly heavier than air. It is used in LPG as a fuel and as a chemical feedstock.
Propane is a colorless, odorless gas that is slightly heavier than air. It is used in LPG as a fuel and as a chemical feedstock.
Butane is a colorless, odorless gas that is slightly heavier than air. It is used in LPG as a fuel and as a chemical feedstock.
Propane is the most common component of LPG, followed by butane. The exact composition of LPG varies depending on its source and intended use.