The geographic location of Texas helped the Confederacy because
A. supplies were brought through Mexico
B. the Union could easily block the Gulf
C. it provided less soldiers than the North
D. the numerous railroads helped deliver supplies

supplies were brought through Mexico

Explanation:

Trades with Mexico and very few battles fought there

by creating a labor shortage that pushed the continent toward a market economy

more than 65,000 union soldiers had been killed that summer.

more than 65,000 union soldiers had been killed that summer.

more than 65, is the correct