The Viking invasions of Europe directly caused the development of a) the knight system
b) the code of chivalry
c) benedicitine rules
d) the feudal system

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explanation:

max weber's 3 types of authority. the sociologist and philosopher  max weber  distinguishes  three types of authority—charismatic,  traditional  and legal-rational—each of which corresponds to a brand of  leadership that is operative in contemporary society.

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explanation:

payments were made after the 1940s.

in the 1980s, a commission held investigations and made recommendations.

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