How did the US Constitution improve the structure of the government after the Articles of Confederation?

(1 point)
Responses

It created a unitary system of government.
It created a unitary system of government.

It allowed states to have their own government.
It allowed states to have their own government.

It created three separate branches of government.
It created three separate branches of government.

It gave citizens the right to vote in elections.

It gave citizens the right to vote in elections.