Answer:
Option C.
Step-by-step explanation:
Controlling the Mississippi River, is the right answer.
Throughout the Civil War in the U.S. the Union made attempts to establish a blockade around the southern states. This plan was a portion of a larger plan known as the Anaconda Plan. This larger plan received its name Anaconda Plan due to the very fact that the way in which the union wanted to compress the South look like a snake. The main strategy of the Union was to surround the borders of southern states, keeping the supplies out. Following this, the army would split into two and gain control of the Mississippi River.