It is A, a film that is shown around the world is made for pop culture
"A. The Treaty of Versailles was seen<span> as a humiliation by most Germans"</span> and "<span>B. Germany was forced to pay reparations to the victorious allied powers" are both reasons for Hitler's rise.
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Khmer Rouge was the name popularity given to the followers of the Communist party of Kampuchea. Which the CPK ruled in Cambodia between the 1975 and 1979.