(A) ** Abraham Lincoln
(B) Jefferson Davis
(C) Ulysses S. Grant
(D) Robert E. Lee
EXPLANATIONS BELOW
Concept note-1: -In the Senate, however, the fall of Sumter was the latest in a series of events that culminated in war. On November 6, 1860, in an election that brought the new Republican Party to national power, Abraham Lincoln was elected president by a strictly northern vote.
Concept note-2: -With the assassination of President Abraham Lincoln, Andrew Johnson became the 17th President of the United States (1865-1869), an old-fashioned southern Jacksonian Democrat of pronounced states’ rights views.