The correct answer is D) because the articles lacked an outline for a tax system that would pay debts.
One reason that the Constitutional Convention decided they needed a document to replace the Articles of Confederation was that the articles lacked an outline for a tax system that would pay debts.
The Articles of the Confederation did not consider a strong central government. Indeed, it was the states the ones who could collect taxes, not Congress. And if Congress needed money, it had to ask for it to the states. Under the Articles of Confederation, Congress was limited to oversee relationships with Native American Indians tribes, run a post office, and sign treaties. But it couldn't collect taxes or regulate commerce.
The other options of the question were A) because the articles were originally drafted and ratified by the British. B) because the articles did not provide the country legitimate to the rest of the world. C) because the articles contained an outdated explanation of the president's role.