Answer:
Correct answer is:
D. 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:
Option A is not correct as the document that officially announced the independence of the United States was Declaration of Independence.
B is not correct as the Articles couldn't provide a strong government and that is why they were later changed.
C is not correct as none of the documents brought by Americans since 1776 had no connections with Great Britain whatsoever.
D is correct as Articles that were written in 1777 served as the first constitution of 1787 until a new, better constitution was written.