What was the main purpose of one of the first world organizations, the league of nations?

The correct answer is the search for peace and promote international cooperation in economic and social matters.

Explanation:

This international organization, based in Geneva (Switzerland), was born at the Paris Conference on April 24, 1919, but it was not until November 15, 1920, that the first meeting of the first members took place in Geneva.  

The ideas that promoted the creation of this body were promoted by the so called Council of Four, formed by the President of the USA, Thomas Woodrow Wilson, George Clemenceau, Prime Minister of France, David Lloyd George, Prime Minister of England , and Vittorio Emmanuele Orlando, also Italian Prime Minister.

i believe the answer is d. it was not uncommon for people to faint or even convulse at these high-energy meetings.

during the ming dynasty