Answer:
I do not really know but I think it is A
Answer:
The system of feudalism depended on weak ruler.
Explanation:
the dominant social system in medieval Europe, in which the nobility held lands from the Crown in exchange for military service, and vassals were in turn tenants of the nobles, while the peasants (villeins or serfs) were obliged to live on their lord's land and give him homage, labor, and a share of the produce, notionally in exchange for military protection.
I think its A. but not so sure
No
many things could change it science , an invasion of another country etc
They developed in the area known today as Israel and western mesopotamia, at first but then under the rule of emperor Constantine, many churches were build in rome.