Answer:
A. John Locke.
Step-by-step explanation:
In the 17th century John Locke introduced the concept of happiness as an objective that rulers should promote by providing individuals with the right to property and to produce gains for their well-being. However, it is in the Declaration of the Rights of Man - when it is proclaimed the independence of the United States, in 1776– that Thomas Jefferson includes "the pursuit of happiness," along with freedom and life, as "self-evident" truths, inalienable rights of men. Years later, in the Declaration of the Rights of the Citizen (1789) the French emphasize equality, freedom, and fraternity, but that document also establishes the "right to happiness of all." Of course, these principles were not initially applied to all human beings until centuries later.