Final answer:
The option that was NOT a weakness of the Articles of Confederation is C. It was not easy to add amendments. Amending the Articles required unanimous consent, making them inflexible. The national government did face issues such as lacking a national currency, the ability to enforce taxes, and the means to raise a national army.
Step-by-step explanation:
The question is asking which of the listed options was NOT a weakness of the Articles of Confederation. The correct answer is C. It was not easy to add amendments. In fact, amending the Articles required a unanimous vote of all thirteen states, which was an almost impossible hurdle and thus made the Articles very rigid. The other options listed were indeed weaknesses: A) There was no national currency, B) The federal government couldn't enforce taxes, and D) There was no national army. Specifically, the national government under the Articles of Confederation couldn't raise an army and depended on the states to provide soldiers, which was made evident by the difficulties experienced during Shays' Rebellion.