The main factors that caused Germany's economy to suffer after World War I were wartime reparations and hyperinflation, the rise of the Nazi Party, disarmament, and the Great Depression.
The correct answer is wartime reparations and hyperinflation. After World War I, Germany was held responsible for the war by the Treaty of Versailles, which required them to pay large amounts of reparations to the victorious Allies. These reparations, coupled with the high costs of the war, put a significant strain on Germany's economy. To finance the reparations, Germany resorted to printing more money, leading to hyperinflation. This hyperinflation caused the value of the German currency, the mark, to plummet, making it practically worthless. As a result, the German economy suffered greatly, leading to social and political unrest and paving the way for the rise of extremist groups like the Nazi Party.
