Serfs, also known as peasants, were the lowest class of citizen in feudal societies. They were allowed to live on land own by Lords in return for labor, which was practically slavery.
World War I started in the middle of 1914 because of the assassination of Archduke Franz Ferdinand. The war went on for 5 more years, until the Treaty of Versailles was created and commanded the armies to seize fire. World War I officially ended on June 28, 1919.
I would say it is "C", simply because there's so much history that is war/conflict related.
Answer:
Taft and Dollar Diplomacy
Explanation:
"Dollar diplomacy" was evident in extensive U.S. interventions in Cuba, Central America and Venezuela, especially in measures undertaken by the United States government to safeguard American financial interests in the region.