Final answer:
The best title for the given information is 'Weaknesses of the U.S. Government Under the Articles of Confederation', as it describes the federal government's inability to perform essential functions due to the intentional limitations imposed by the Articles.
Step-by-step explanation:
The information given highlights the limitations of the federal government under the Articles of Confederation, which include the inability to levy taxes, enforce laws, or regulate trade. These limitations led to significant issues, such as financial struggles, difficulty conducting foreign affairs, and challenges in maintaining national security. The federal government's power under the Articles of Confederation was intentionally limited due to the fear of creating a powerful central government that might infringe on the rights and liberties of citizens. However, this caused many practical problems, such as the inability to pay debts from the Revolutionary War or protect from external threats, exemplified by the weak response to Shays' Rebellion, all of which highlighted the need for a stronger central government. This resulted in the drafting of a new Constitution to address these critical weaknesses and to lay the groundwork for a more effective federal system.