Answer:
D. People sought protection from local lords
Explanations:
A. First of all, it can't be A, although its kinda funny
B. People HATED the Vikings, and I want to make it clear
C. Vikings raided farms and villages, and no way are they gonna keep making food for the Vikings
D. This contributed to the rise of feudalism in Europe (Serfs and lords) unfortunately
Hope this helps :)
It might be C and if it is don't beat me up or rank it 1/5 plz :)