In what way did World War I represent a turning point in modern world history?
A. The problems left unresolved at the end of the war contributed to
future conflicts.
B. The United States' refusal to participate in the war led to a decline
in U. S. global power.
C. The military buildup that occurred during the war led imperial
powers to expand their empires.
D. The devastation produced by the war led to the end of
globalization in the 20th century.