(A) 1/2
(B) ** 2/3
(C) 3/4
(D) 5/8
EXPLANATIONS BELOW
Concept note-1: -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-2: -The League of Nations consisted of three main organs. The Assembly, where all member states were represented on equal footing; the Council which was composed of permanent and non-permanent members; and the Secretariat which performed the day-to-day work at the League’s headquarters in Geneva, Switzerland.
Concept note-3: -Russia was expelled out of League of Nations for invading Finland and USA never joined the league, ironic because it was America who designed it and these were the two major countries who were not members of League of Nations.
Concept note-4: -In total, 63 states became members of the League of Nations (with at most 60 at the same time), which represents a great majority of the states existing at that time.