During the U.S. Civil War

During the U.S. Civil War,

A) more than six hundred thousand soldiers on both sides died.
B) the South had the advantage in numbers of troops and other resources.
C) the war began with the goal of ending slavery but became a war to save the Union.
D) the South successfully blockaded Union ports.
E) northerners feared that lack of access to southern cotton would dampen support for the war effort.