Which of the Following Were Components of the Evolving Northern

Which of the following were components of the evolving Northern strategy of total war toward the South?

A) Instituting a naval blockade of Southern coasts
B) Liberating the slaves to undercut the South economically
C) Cutting the Confederacy in half by seizing control of the Mississippi River
D) Chopping the Confederacy to pieces by sending troops through Georgia and the Carolinas
E) Trying everywhere to engage the South's main strength and to grind it into submission.