Imperialism was unsuccessful because
a.
european nations did not have enough military strength to enforce it.
b.
resistance was strong among educated nationalists.
c.
foreign trade lost global significance.
d.
all of the above.

The Imperialism was unsuccessful because:

d. All of the above.

Explanation:

European Imperialism wanted to grow up with the industrial revolution and the new technological advance that it brought, but how they didn't control their colonies and set aside international commerce and cooperation. When occurred the first World War and the empires lost against the nationalists, the losers: The Austro-Hungarian, German, Ottoman, and Russian empires were abolished.

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