Answer:
A. By pressuring him to take a stand on slavery.
African-American and white abolitionists persistently forced Lincoln to report the finish of servitude after the Civil War started in 1861. He was hesitant, mostly in light of his own doubts yet in addition since he didn't need the four fringe states to withdraw. Delaware, Maryland, Kentucky, and Missouri were slave expresses that had decided not to withdraw.
For whatever length of time that the war remained a fight to protect the Union, Lincoln would have liked to keep some other states from joining the Confederacy.
