One of the provisions is an association of all nations
This led to the establishment of the league of nations in 1920. Woodrow Wilson created this point in order to maintain the peace and order in europe.
But back then the united states never agreed to join because at that time we're committed to stay neutral
I believe it may be either C or D, i'd go with C, tell me if you get it correct or not, sorry if you don't
Answer: Since these sentences have a passive tone instead of exclamatory (an example), it keeps the reader calm rather than on their toes and anxious to see what happens next. Hope this helps!