Which factor was an important contributor to the start of World War I?

A. The fall of orthodox religions after the Reformation led to religious tensions among Europeans.
B. Industrialized nations were using advanced technology to oppress less developed European nations.
C. European countries were competing with one another for control of colonies in Africa and Asia.
D. Democracy began to spread throughout Europe and incited opposition from dictators.

European countries were competing with one another for control of colonies in Africa and Asia, which was a significant contributor to the start of World War I. The desire for imperial dominance and resource exploitation fueled tensions among nations, leading to increased militarization and diplomatic conflicts.

Nationalism, opposition to foreign rule, and rivalries between the Great Powers were exacerbated by treaties requiring allies to enter a war once it began, contributing to the volatile environment that eventually ignited the war.

The intricate network of military alliances, geopolitical ambitions, old grudges, and rising nationalism among various European powers, such as Germany, Austria-Hungary, Britain, France, and Russia, culminated in the outbreak of World War I in 1914.

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