What Was the Result of an International Crisis in Greece

What was the result of an international crisis in Greece during the 1820s?

A) the end of the Ottoman Empire due to the combined efforts of the eastern European states
B) Greece's independence from the Ottoman Empire with the support of French, British, and Russian allies
C) the establishment of Greece as an Ottoman territory and the collapse of its economy
D) a decrease in national independence movements elsewhere due to the failures of the movement in Greece
E) the expansion of Russia to the Mediterranean Sea and its rise as the preeminent European power