What Was One Way in Which Jackson's Approach to Politics

What was one way in which Jackson's approach to politics was significant?

A) He established a precedent for U.S. presidents to rely on their record rather than campaigns to win votes.
B) He ended the powerful Democratic party "machine" because it contradicted his idea of the "common man."
C) He was known first and foremost as an intellectual who happened to have produced the nation's first reliable dictionary.
D) He showed unprecedented concern for the undemocratic constraints on African Americans and Native Americans.
E) Jackson was the first president to see campaigning as an acceptable tactic and to aggressively use it.