Answer: D is right. But there are also many other reasons.
Explanation: League of Nations was formed by Allied powers (from the WW I) so consequently it was viewed as "League of Victors". Moreover USA did not join, may other states did not join and later on League of Nations was unable the prevent outbreak of WW II.
Answer:Following the enlightenment many Europeans began to support the ideas of “divine right” and absolute rule
Answer:
there was a lot of segregation and racial tensions back then. some whites just wanted to have more than the African Americans