Answer:
<em>b) emphasizing that his only goal was to save the Union.</em>
Explanation:
While Abraham Lincoln is well known for his debates with Stephen Douglas and played an important role in the discussions about slavery he was not an abolitionist. Lincoln was a nationalist that would do anything for the states stay together and avoid a war in the Union. He said in the First Inaugural Address:
" I declare that “I have no purpose, directly or indirectly, to interfere with the institution of slavery where it now exists. I believe I have no lawful right to do so, and I have no inclination to do so.” Those who nominated and elected me did so with full knowledge that I had made this, and many similar declarations, and had never recanted them.".
<span>Ideas of nationalism and popular sovereignty became more of the outcome.</span>