Lincoln's Gettysburg Address says that the United States was "conceived in Liberty and dedicated to the proposition that all men are created equal." Why did Lincoln make this statement?


A.)he believed that the South was free to secede from the Union so he would stop trying to reunite the nation and focus on equality in the North


B.)he concluded that the United States should consider changing the principles it was founded on so that people could be equal


C.)He wanted to appeal to slave owners in the North so they would vote for him in the next election


D.)he emphasized that the Declaration of Independence was designed to make all men equal and that the United States needed to live up to those ideals