Cylinder gas or LPG (Liquefied Petroleum Gas) is a mixture of which one of the following?

Cylinder gas or LPG (Liquefied Petroleum Gas) is a mixture of which one of the following?

سلنڈر گیس یا ایل پی جی (مائع پٹرولیم گیس) مندرجہ ذیل میں سے ایک مرکب ہے؟
Explanation

LPG (Liquefied Petroleum Gas) mainly consists of hydrocarbons like propane and butane.

These are gases composed of hydrogen and carbon atoms.

It is used as fuel for cooking and heating.