Which one of the following is the first international organization?

Which one of the following is the first international organization?

مندرجہ ذیل میں سے کون سی پہلی بین الاقوامی تنظیم ہے؟
Explanation
The League of Nations was the first worldwide intergovernmental organization.
Its mission was to maintain world peace.
They were founded on 10 January 1920 by the Paris Peace Conference.
It ended the First World War.
The Founder of the League of Nations was Woodrow Wilson
Its Headquarters: Geneva, Switzerland