The answer is "Allowed the states to retain most of their power."
The Articles of Confederation did not provide for a bicameral legislature. Instead, it established a unicameral legislature, where each state had one vote regardless of its size or population.
The Articles of Confederation did not establish a strong executive branch. In fact, it lacked an executive branch entirely, as the founders were wary of centralized power after their experience with British rule.
This is correct. The Articles of Confederation allowed the states to retain most of their power. The national government had very limited authority, and most powers were reserved for the states.
The Articles of Confederation did not create an effective way to raise taxes to fund an army. The national government could request funds from the states, but it had no power to enforce these requests, leading to financial difficulties.
The Articles of Confederation did not address the issue of slavery. Slavery continued to exist in the United States until it was abolished by the 13th Amendment to the Constitution in 1865.