Answer:
C. Treaty of Versailles
Step-by-step explanation:
The Treaty of Versailles was the agreement that officially ended World War I in 1919. It imposed harsh terms on Germany, holding them primarily responsible for the war and its damages. The treaty required Germany to pay reparations, give up territories, demilitarize, and accept blame for the conflict. These punitive terms and the economic burden placed on Germany contributed to social and economic unrest, eventually paving the way for World War II.