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.
A historian creates a graph of the economic strength of various empires throughout history. (apex)
I think that African American's voter registration faced such fierce resistance due to the prevalent racist beliefs that wanted to keep African Americans politically and economically weak, socially separated and in second-class citizen role<span />
