A group of people lives in a chaotic country that has been devastated by war. There is no government or law enforcement, so people are able to kill and steal freely. To bring order to their lives, the people agree to give up their personal freedom and obey the orders of a single leader. This concept is an illustration of which Enlightenment philosopher's ideas? A. Montesquieu's theory of the separation of powers B. Voltaire's theory of the separation of church and state C. Hobbes's theory of the social contract D. Rousseau's theory of natural rights