What was the purpose of the Selective Service Act of 1917?

A. To allow the U.S. Army to draft men for World War I

B. To allow the FBI to train spies for World War I

C. To allow the U.S. government to hire civil servants for World War I.

D. To allow the U.S. government to provide benefits for veterans of
World War I

Base on the question which is asking to choose among the following choices that states the place on which the North began to dominate the South after the battle at and base on my research, the place is called Gettysburg, so the answer among them is letter D. I hope you are satisfied with my answer