Which of the following European countries made the Eastern Orthodox Religion of the Byzantine Empire their official religion?

"a government in which power is divided between state and national levels". federalism is a system of government in which entities such and state and province, share power with the national government.

c or d both can be the answer

the two things that develop a strong social foundation are: a. separation of church and states e. education received attention separation of church and states separate the illogical  argument that came from religious beliefs to a fact based belief. while education will make us remember the past to avoid the repeat of our mistakes.