(A) Treaty of Versailles
(B) League of Delphi
(C) ** League of Nations
(D) United Nations
EXPLANATIONS BELOW
Concept note-1: -The League of Nations (1920 – 1946) was the first intergovernmental organization established “to promote international cooperation and to achieve international peace and security”. It is often referred to as the “predecessor” of the United Nations.
Concept note-2: -The predecessor of the United Nations was the League of Nations, established in 1919, after World War I, under the Treaty of Versailles “to promote international cooperation and to achieve peace and security."
Concept note-3: -Soviet Russia and the USA were not a part of the League of Nations. The League of Nations was an organisation formed based on 14 points presented by the then American President Woodrow Wilson during the Paris Peace Process on January 10, 1920.
Concept note-4: -The League of Nations was an international organization, headquartered in Geneva, Switzerland, created after the First World War to provide a forum for resolving international disputes.
Concept note-5: -The League of Nations (French: Société des Nations [sɔsjete de nɑsjɔ̃]) was the first worldwide intergovernmental organisation whose principal mission was to maintain world peace.