The correct answer is: D. John Dewey.
Indeed, was a Vermont-native, American philosopher who advocated for Democratic Socialism. He proposed that the fundamental pillars of a prosperous and fair Democratic society were both education and democracy. Democracy was important because it allowed for the existence of a civil society that was motivated and involved in its own governance. Education was important because it allowed individuals to have the proper education and learning to facilitate their informed opinions on matters of importance to ensure the viability of their democratic, civil society.