C. Punishing Germany by placing sole responsibility on then for the war
Step-by-step explanation:
The German Empire was held accountable as the provoker and aggressor of the World War One. The Treaty of Versailles has harsh terms for the Germans, stripping them militarily and financially. This would set a deep hatred for the treaty by the Germans which a certain politician would promise the German people to avoid following the signed treaty. That politician was Adolf Hitler and when he had been elected, then established a dictatorship, he did what he promised and started to militarize Germany again. He broke other terms such as the militarization of the Rhineland, Anschluss on Austria, Claims in Memel, invasion of Czechoslovakia, etc. This would all lead to the start of World War 2 in Europe.