Which of the following individuals is not considered a theorist of the social contract?

Explanation

Thomas Hobbes, John Locke, and Jean-Jacques Rousseau are all prominent social contract theorists who explored the foundational agreements between individuals and governments in works such as Leviathan, Two Treatises of Government, and The Social Contract. Since all listed figures except 'None of the above' are social contract theorists, the correct answer is 'None of the above'.