What does L.P.G stand for and which of the following options is the correct full form?

Liquefied Petroleum Gas (LPG) is a mixture of hydrocarbons, mainly propane and butane, that are in a gaseous state at room temperature and atmospheric pressure but can be easily liquefied under moderate pressure. LPG is widely used as a fuel for domestic, industrial, and transportation purposes due to its high energy content, portability, and clean-burning characteristics. It is also known as propane or autogas, depending on the context in which it is used.