(A) Washington D.C.
(B) Versailles, France
(C) ** Geneva, Switzerland
(D) Luxembourg
EXPLANATIONS BELOW
Concept note-1: -On 1 November 1920, the headquarters of the League was moved from London to Geneva, where the first General Assembly was held on 15 November 1920. The Palais Wilson on Geneva’s western lakeshore, named after Woodrow Wilson, was the League’s first permanent home.
Concept note-2: -The League of Nations moved its headquarters to the Palais des Nations in 1936. Though dissolved at a final Assembly held in Geneva in April 1946, the League of Nations handed over its properties and assets to the United Nations Organization, the Palais des Nations being its crown jewel.
Concept note-3: -In February 1920, the League voted to recognize the perpetual neutrality of Switzerland. The League also established its headquarters in the Swiss city of Geneva, a tribute to the country’s neutrality as well as its relative economic and political stability, which has continued to the present day.
Concept note-4: -The Palace of Nations (French: Palais des Nations, pronounced [palɛ de nɑsjɔ̃]) is the home of the United Nations Office at Geneva, located in Geneva, Switzerland. It was built between 1929 and 1938 to serve as the headquarters of the League of Nations.