The statement that is most true regarding Sparta is that "<span>a. All Spartan men lived in military barracks until age 30 and were only allowed to visit their wives," since military readiness and power was the most essential aspect of society. </span>
It was the "c. principle of popular sovereignty" that both the State constitutions and the Articles of Confederation had in common, since both these documents put a strong emphasis on the people being able to choose their representatives.
They agreed because they hoped it would offer stability for the U.S economy.