The concept of natural rights which was later used in the deceleration of independence was first proposed by

John Locke

John Locke proposed “liberal” political philosophy. The concept included limiting government and individual rights strengthened. This philosophy was the basis of the American Constitution. John Locke used natural philosophy as groundwork and built upon the assumption that human beings are subject to moral law.

answer; ///i believe the correct answer is (b) the writing of the ancients who lived in india after the indus valley inhabitants died out;