The answer is the second choice
The Articles did not give the power to tax, could not settle state disputes, and made it too difficult to approve law or change the Articles.
Under the Articles of Confederation, Congress lacked power to tax, making it hard for the nation to pay off their war debts. Shey's Rebellion showcased the weaknesses of the Articles and lead people such as George Washington to realize that the Articles was not strong enough on its own.