petition
To pass laws all states need to agree
None, according to the constitution states are free to govern themselves however they want and can chose what laws they want to set into place and what not
unanimity
unanimity
9 out of 13
petition
It was hard to get laws passed under the Articles of Confederation because to enact a law, 9 out of 13 states needed to agree (B). This requirement made it challenging to achieve consensus among the states, often leading to gridlock and inaction. Additionally, the lack of a strong central authority meant that there was no executive power to enforce laws or facilitate cooperation among the states.
It's Easy the answer is SELFGOVERNMENT
Self-government
One weakness was the Articles made it impossable to agree to making major laws because 9 out of 13 states had to agree to it. Plus Congress could not tax the states because too much power went to the states.
The US state legislatures can pass laws applicable in their own states.
States cannot pass laws the contradict the Constitution