Answer:
centralized
Explanation:
this is the only logical answer. organized, vertical and singular feudalism don't exist (I believe, I don't remember ever learning those)
The change in breastplates and helmets contribute to decline of the Roman Empire by weakening the the military. It weaken them because the removal of it promote laziness and negligence of training and the such. It also removes the protection against ranged weapons which caused many casualties.
Maintain "campaign mode" throughout their entire tenure and forces them to continuously be raising money from donors.
True: living in urban environments can influence an individual's behavior.
