According to Hannah Arendt, the American Struggle Was Indeed a Revolution

According to Hannah Arendt, the American struggle was indeed a revolution, perhaps history's only complete revolution, __________.

A) for it alone ended with a democratic institutions.
B) because it became an example for other nations.
C) because it managed to route what was then the great world power.
D) for it alone ended with a new foundation of liberty instead of the tyranny that came after other revolutions.