Respuesta :
The only statement that is not correct is choice A. It states that every nation-state has a national government. There's only one national government in every country. The other choices or letters such as B and C are the correct statements.
I believe the answer is: A.Every nation-state has a national government.
National government refers to the government who had a jurisdiction over all territory in the whole country. Even though every nation state has the power to govern itself, their influence is limited to their own states as its maximum jurisdiction. So it couldn't be considered as a national government.