The correct answer to this open question is the following.
Here we have just a statement. There is no question. However, doing some research we can say that the correct question would be this: "What pieces of evidence would best support the author's conclusion?"
If that is the case, then the correct answer is the following.
The evidence would be the way the Articles of Confederation created a week central government that basically, only had the power to control the post office and deal with Native American Issues. It was the states the ones that were sovereign and could collect money through taxation. So if the Central government needed money, it had to ask the states for it.
That original statement was written by Edmund S. Morgan, in "The Birth of the Republic."