Answer: The major causes of World War II were numerous. They include the impact of the Treaty of Versailles following WWI, the worldwide economic depression, failure of appeasement, the rise of militarism in Germany and Japan, and the failure of the League of Nations.
Explanation:
The answer to this question is A. The open door policy
I believe it is B) They thought democracy was being spread around the world
It didn't address slavery in the southern states
