The Natural Rights theory is associated with the philosopher John Locke, who advocated for the concept of natural rights. Natural rights are basic rights that are believed to be inherently possessed by all individuals, simply by virtue of being human. These rights are considered to be inalienable and universal, meaning they cannot be taken away and they apply to everyone.

Option 1, Hobbes, is incorrect because although Hobbes had his own social contract theory, he did not specifically advocate for the Natural Rights theory.

Option 3, Hegel, is incorrect because Hegel had a different philosophical perspective and did not advocate for the concept of natural rights.

Option 4, Rousseau, is incorrect because Rousseau had his own concept of natural rights, but it differed from Locke`s.

Alert - correct answer should be 3