Explanation:

- John Locke:

- Known for advocating the theory of civil legitimacy.

- Emphasizes government legitimacy through consent of the governed.

- Believes in natural rights: life, liberty, and property.

- ?? Correct Answer: John Locke is an advocate of the theory of Civil Legitimacy.

- Thomas Hobbes:

- Advocates for a strong central authority to avoid chaos.

- Known for the social contract theory.

- Believes people give up some rights for protection.

- J.J. Rousseau:

- Known for his version of social contract theory.

- Focuses on the idea of general will.

- Believes in direct democracy.

- Aristotle:

- Ancient Greek philosopher.

- Discusses forms of government but not specifically civil legitimacy as per modern understanding.