Answer:
(a) They were the first constitution of the United States, and they united the newly independent states under a national government with limited power.
Step-by-step explanation:
The Articles of Confederation was completely ratified in 1781 with every state agreeing to the ratification, which was the first Constitution of the United States following the American War of Independence.
However, this constitution lacks a central government or power over foreign and domestic commerce, which implies that the national government has limited power.
Hence, in this case, the correct answer is option A. They were the first constitution of the United States, and they united the newly independent states under a national government with limited power.