It is definetly c. I think the question is should be conservation in America.
Because conservation generally talks about biodiversity,Environmental and natural resources
Explanation:
On what basis has the federal bureaucracy been established? The federal bureaucracy is established under all of the agencies, people, and procedures through which the Federal Government operates.
May be it helps you
When Vicksburg fell to Union troops on July 4, 1863, the Confederacy lost its last chance to control the Mississippi River. Control of the Mississippi River during the American Civil War was an economic and psychological factor for both the North and the South.
