How did the Confederacy's strategy at the start of the Civil War differ from the Union's strategy?

A. The Confederacy worked to stop opposing forces from getting
enough food and supplies.

B. The Confederacy focused on protecting its own territory instead of
invading its opponent's territory.

C. The Confederacy spent most of its money building an enormous
navy to control the Mississippi River.

D. The Confederacy wanted to convince the border states to support
its war efforts.