ILL GIVE U BRAINYLIST

what was one important effort of Charlemagne's rule as holy roman empire?  A. small kingdoms become more independent

B. The feudal system was brought to an end  

C. The catholic church lost most of its power

D. Education became more important  

I think the answer would be (B)

-Rintaro Suna

cuban communists pressured the soviet union to place missiles in cuba.