Answer:
B. Control of the Mississippi River during the American Civil War was an economic and psychological factor for both the North and the South. For many years, the river had served as a vital waterway for mid-western farmers shipping their goods to the eastern states by way of the Gulf of Mexico.
A. The Battle of Gettysburg fought on July 1–3, 1863, was the turning point of the Civil War for one main reason: Robert E. Lee's plan to invade the North and force an immediate end to the war failed. ... The collision of two great armies at Gettysburg put an end to that audacious plan.
A. General Sherman captured Atlanta
I dunno the rest. Sorry.
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-RosemaryAndStars