I would think that the answer would be C
So their government is earning more money from taxes and spending less of it.
The west symbolized the growth populations of America.
To win the war, the South had only to survive. On the other hand, for the North to win, the Union had to be restored. Thus, Union forces had to conquer the South in order to win the war.
In 1914, the official U.S. position concerning the war in Europe was one of great isolation. The US had no desire to get involved in a war that they thought had no significance for them.
They first came a long time ago