The correct answer is D. Methane, Butane and Propane.
LPG, or liquefied petroleum gas, is a mixture of hydrocarbon gases that are compressed and liquefied under pressure. It is a common fuel for cooking, heating, and transportation. The main components of LPG are methane, butane, and propane.
Methane is the simplest hydrocarbon, with the chemical formula CH4. It is a colorless, odorless gas that is the main component of natural gas. Methane is a very efficient fuel, and it burns cleanly with very little emissions.
Butane is a hydrocarbon with the chemical formula C4H10. It is a colorless, flammable liquid that is used as a fuel in many applications, including cooking, heating, and transportation. Butane is also used in the production of plastics and other chemicals.
Propane is a hydrocarbon with the chemical formula C3H8. It is a colorless, flammable gas that is used as a fuel in many applications, including cooking, heating, and transportation. Propane is also used in the production of plastics and other chemicals.
The other options are incorrect because they do not include all of the main components of LPG. Option A does not include propane, option B does not include butane, and option C does not include methane.