The feudal system was just like an ecosystem - without one level, the entire system would fall apart. The hierarchies were formed up of 4 main parts: Monarchs, Lords/Ladies (Nobles), Knights, and Peasants/Serfs. Each of the levels depended on each other on their everyday lives.
Pretty sure it’s B
it has to be proven to be intentional
<span>"C. Napoleon and his army established a revolutionary government in Rome"</span> is the best option from the list, but it should be noted that this was only a brief unification.
I think aproximently about 1990
