<span>The bitterness left behind in parts of Europe by the Treaty of Versailles contributed to the rise of D. totalitarianism.
Totalitarianism has to do with a form of dictatorial rule, seen in the rule of Hitler and Mussolini. They exploited this emotion of bitterness and eventually led to the World War II, where their rule was authoritarian. </span><span>
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C. Bantu
Bantu-speaking peoples migrated from Western Africa (in the area of modern Nigeria) throughout southern parts of Africa starting around 1000 BC and continuing to the 1500s (or perhaps a bit later, by some accounts).
There is some debate among historians as to whether iron metallurgy arose independently in Africa or was learned or borrowed from the Middle East or Europe. But whether independently invented or borrowed, the fact remains the the spread of iron working in Africa and the spread of Bantu languages by Bantu migration across Africa were correlated events.
New farming arrangements led to "<span>a. a focus on cash crops" since these new arrangements and technologies made the production of cotton far more lucrative. </span>