How did nation-states develop during the Renaissance?

Some “modernization theories” of nationalism see it as a product of government policies to unify and modernize an already existing state. Most theories see the nation-state as a modern European phenomenon, facilitated by developments such as state-mandated education, mass literacy, and mass media (including print).

newly independent countries of the former ussr

answer is b.

  it is always the best policy to have good communication and good relations between individuals and, specially, between leaders of the countries. for this purpose, among others, there is a common place, the united nations, where the representants can present his and learn about the other country's policies.