Federalism
Federalism is the mixed system of government, combining a central government with regional governments in a single political system. By combining the various states into the general central government, the power of the national government increased making it strong enough to deliver
Answer:C.
Explanation:
Roosevelt was big on conserving energy and natural resources
B. Emancipation proclamation
Answer: Domestic terrorism is a form of terrorism in which victims "within a country are targeted by a perpetrator with the same citizenship" as the victims.