Which of these countries was NOT a founding member of the League of Nations? A. France B. Switzerland C. United States D. Italy

The correct answer is C. United States.<br /><br />The League of Nations was an international organization established in 1920 after World War I, with the aim of promoting peace and preventing future conflicts. The founding members of the League of Nations were the countries that signed the Treaty of Versailles in 1919, which included France, Switzerland, and Italy. However, the United States did not join the League of Nations, despite President Woodrow Wilson's efforts to promote its establishment. The U.S. Senate refused to ratify the Treaty of Versailles, and as a result, the United States did not become a member of the League of Nations.