Final answer:
True, the Articles of Confederation required the unanimous consent of all 13 states for amendments to be made, reflecting the concerns at the time over a strong centralized government.
Step-by-step explanation:
The statement that changes in the Articles of Confederation were supposed to be approved by all 13 states is true. The Articles were the United States' first constitution, and one of their significant drawbacks was the requirement for unanimous agreement among all 13 states for any amendment to be ratified. This made the process of rectifying and amending the Articles extremely difficult, as achieving a unanimous decision was nearly impossible given the varied interests of the different states. Such unanimous consent was necessary for any changes that would alter the state-nation balance of power established by the Articles.
Passage of routine laws under the Articles, however, required the approval of nine states, which was also a challenging threshold to meet. The constraints on the central government by the Articles of Confederation and the difficulty in passing amendments were reflective of the fear of centralized power following the experience with British rule.