The backbone of Rome's rule was the

powers  are  denied  to the  national governmentin three distinct ways: some  powers, such as the  power  to levy duties on exports or prohibit the freedom of religion, speech, press, or assembly, are expressly  denied  to the  national government  in the  constitution.

the main concern with the first draft of the articles of confederation was too much power in the state governments.

b: the exchange of coined money

a)the court decides which cases it will hear