Answer:
Declaration of Independence is a list of grievances against the British Crown, seeking the sympathy of the international community for the cause of the colonies in revolting against their mother country. The idea that all men are created equal,
Explanation:
and that government is based on the consent of the governed, became the foundation for the US political ideal of popular sovereignty meaning that the government exists to serve the people, who elect representatives to express their will.
The Czar’s autocratic policies toward the people led to social unrest because the people, especially the "common folk" or peasants were granted practically no rights and there was no democratic process--meaning that they became upset when they were unable to further their lives either socially or economically.
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.