There were lot of differences between Celtic Christian Church and Roman Christian Church, first is the calculations of Easter which became very controversial during the 17th century. Other major differences are observed during baptism ceremony, consecration of churches, consecration of priests and even in the tonsure and liturgy.
I believe the answer is d.
I would say C. local feudal lord and his knights.
Because in the Middle Ages, large estates called manors existed where serfs and peasants were taken in. Of course Marianne would have to work hard in the manor, though she would be under protection. I think that's the answer but I am not 100% sure. You should view other sources if you still have questions. Hope I helped :)
Answer:
Emperor Claudius was the first
Wait what ? What quote are you talkin about?