The correct answer is C) The League of Nations.
The League of Nations was an international organization formed after World War I that was supposed to keep international peace. The initial goal of this organization was to prevent another world war in the future by using diplomatic and political solutions instead of warfare. This idea was developed by US President Woodrow Wilson. However, the US refused to join this organization. This is due to the fact that Congress voted against this, as Congress would lose their right to declare war to the League of Nations.
