World War I Had Several Long-Term Causes, Including

Multiple Choice

World War I had several long-term causes, including

A) a growing sense of nationalism throughout Europe.
B) the frenzied imperialism that had dominated Europe's thoughts for the past few decades.
C) the growing fear that if one of the European nations did not demonstrate its strength relative to the others, the United States would join the imperialistic jockeying.
D) both a and b
E) both a and c