The correct answer is A) It had little power.
The statement that is true of the Congress established by the Articles of Confederation is "It had little power."
The Articles of Confederation was the first United States Constitution. The Articles served as the first form of government for the new nation in turbulent times. Under the Articles of Confederation, the central government was weak. Congress had limited powers and could not collect money. If it needed some, COngress had to ask for it from the states, that were sovereign and had the power to get money through taxation.
That is why the delegates meet in the summer of 1787 in the city of Philadelphia, Pennsylvania, to create a new Constitution during the so-called Constitutional Convention.