Explanation: 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. ... This assassination led to Austria-Hungary declaring war on Serbia.
C- collapsing in Europe, the soviet economy was in shambles based on the fact the country was communist- a system of government and economics that has never worked when tried
