Final answer:
Option c, all states had to consent to any amendments, was a provision of the Articles of Confederation. There was no separate judiciary branch and the president was not elected by the people in the way executives are in modern times.
Step-by-step explanation:
The provision of the Articles of Confederation that required all states to consent to any amendments is accurately represented by option c. Under the Articles of Confederation, amendments to the Articles required a unanimous vote of the 13 states. The system did not have a separate judiciary branch, nor was there a president elected by the people; the presiding officer of Congress was referred to as 'President of the United States in Congress Assembled,' but the role was not that of an executive as we understand it today. Congress did have some powers such as managing the army, but the Confederation government lacked the powers to effectively regulate trade, impose taxes, or enforce its own laws.