Slavery was the most significant cause of the controversy
The army developed the military occupational specialty system for tracking the weaponry skills in WWII.
These MOS system had various fields like communications department, gunnery and gunnery control department, field and coast artillery, air crew, security departments etc.
The selected soldiers are assigned their specific tasks and all the groups are organised by a alphanumeric code system.
When any state or country operates with a "command economy", this means that the government, instead of the "free market" or consumers, is in charge of determining output and production quotas.
Amendment 21 repealed Amendment 18
The answer would be C, Federalists. The Constitution adopted the idea of federalism, the sharing of powers between national and state governments. Followers of federalism were called the Federalists.