(A) Nationalism
(B) Militarism
(C) Alliances
(D) ** The Hundred Year War
EXPLANATIONS BELOW
Concept note-1: -Answer. Militarism, Alliances and Imperialism are the cause of World War I. liberalism is not the cause of World War I.
Concept note-2: -This increase in militarism helped push the countries involved into war. The immediate cause of World War I that made the aforementioned items come into play (alliances, imperialism, militarism, nationalism) was the assassination of Archduke Franz Ferdinand of Austria-Hungary.
Concept note-3: -The World War I which began in the year 1914 CE, resulted in high taxes, increased military expenditure, and deployment of Indians to fight in the war. Indian peasants did not profit as a consequence of the World War I.