As Late as 1856, Many Northerners Were Still Willing to Vote

As late as 1856, many northerners were still willing to vote Democratic instead of Republican because

A) of innate liberalism.
B) the Democrats consistently presented superior presidential and congressional candidates to the other parties.
C) many Democrats involved in interstate commerce did not want to lose their profitable business connections with the South.
D) the Democrats were the only national party.
E) the presidential Democratic candidates were the only major or minor party candidates truly committed to preserving the Union at almost any cost.