The correct answer is B) Nine of the states had to agree before a law was passed.
The Articles of Confederation was America's first constitution. Based on the Americans experience as British colonies, the creators of this document wanted to ensure that state governments had a significant amount of power. Along with this, they wanted to make the federal government only had a small amount of power. One way of doing this was making it increasingly difficult to pass a federal law. This is why 9 out of 13 states were required to agree to a law before it became a national law.