Frederick Douglass hoped in the future there would be
equality for all races. To achieve this dream, Douglass believed that education
was the key to attaining equality and bright future for Black Americans. Though Andrew Jackson was a slave holder, he
too had hopes for the future of the United States. This was through expansion. Jackson believed that it was America’s
destiny to rule over the entire continent.
This was later carried out by President Polk who promoted westward
expansion.
After thousands of years of civilization, people realized that the notion of social classes was wrong. The reign of incompetent rulers now and then demonstrated that people in the lower and upper classes could behave pretty much the same. Also, the nobility, supposed to hold the responsibility of political power in exchange of protecting the commoners was nearly always neglected as to justify the nobles' privileges and superior social position. The short-lived Athenian democracy revolved in the minds of countless people throughout the years and inspired the modern democracies of today via the works of the Enlightenment free-thinkers who rejected the traditional hierarchical differences between individuals and advocated for a government of citizens that would serve society, not themselves. As the dissatisfaction of the colonists of the Thirteen British Colonies in America with the despotic impositions of the British government grew, a clear idea of a government serving the will of the people emerged, and that thought was best expressed by Lincoln's statement honoring the sacrifice of the Union soldiers at the Battle of Gettysburg: "A government of the people,for the people, and by the people."
In summary, popular sovereignty consists of a government supported by a Constitution and institutions listening to the needs and concerns of the people in order to act in consequence, this is, real democracy in action.
I believe it would be answer C