Answer:
C: Crowned the new Roman Emperor
Explanation:
In 800, Pope Leo III (750-816) crowned Charlemagne emperor of the Romans. In this role, he encouraged the Carolingian Renaissance, a cultural and intellectual revival in Europe.
Defintion- a system of government that is centralized and dictatorial and requires complete subservience to the state.
A period of roman peace and prosperity
I believe the answer is The Great Wall of China \(^^\)