A. Nationalism and imperialism
B. Militarism and entangling alliances
C. Mutual rivalry, hatred and distrust within the countries
D. All of the above
✅ The correct answer is option D.
Nationalism and imperialism, Militarism and entangling alliances and Mutual rivalry, hatred and distrust within the countries were the main factors responsible for World War I.
Nationalism and imperialism, Militarism and entangling alliances and Mutual rivalry, hatred and distrust within the countries were the main factors responsible for World War I.