I think it is a, correct me if im wrong
Calhoun argued that the US Constitution was based on a pact by 13 sovereign states.
Voting in the presidential elections
Answer:
It all began when the Romans overthrew their Etruscan conquerors in 509 B.C.E. ... Centered north of Rome, the Etruscans had ruled over the Romans for hundreds of years. Once free, the Romans established a republic, a government in which citizens elected representatives to rule on their behalf.
Explanation:
