Answer:
A. The federal government could not levy taxes.
C. The federal government could not raise an army.
Explanation:
The Articles of Confederation established a confederacy in which the states were given full sovereignty and the central government was given very few powers. Some of the weaknesses of this constitution was that the government could not levy taxes and therefore was unable not pay their expenses and debts owed from the Revolution or to secure new funds, instead it could only raise money by borrowing from foreign governments, selling western lands or asking the states for funds (which had the option to reject the request). Likewise, even though the government had the power to declare war, it wasn't authorized to draft soldiers from the states and therefore, it was also unable to raise an army.