The correct answer is economic and political
State societies are motivated by their economic self-interests which basically involve securing the material well-being of its citizens. Also, wars are motivated by politics which is basically about who gets what as a result of the war
200,000,000 taels. but idk don't take my word for it just to get an idea on your answer i hope this helps!
He ruled most of Western Europe from 768-814. And in 800 he was crowned emperor of the romans