What concept was hamilton defining?
a. democracy
c. socialism
b. nationalism
d. federalism

It was a political party that first led by Alexander Hamilton.  It played an active role in crafting the Constitution of the United States.  It was said to support strong centralized government and business interest and economic policies that would make the government stronger.  Apart from defining what Federalism is, Hamilton together with James Madison also wrote several essays in defense of separation of powers and after ratification expanded his explanation of the Constitution to support his recommended economic policies as the Secretary of Treasury.