Answer:
C. allowed ethnic groups in its territory to create new countries based on self-determination.
Explanation:
The Ottoman Empire was part of the Central Powers created during World War I when nations like Germany and Austria-Hungary joined the group. After the defeat in the First World War, the Ottoman Empire lost its provinces, which allowed ethnic groups in the Balkan region to form nations based on self-determination. The Ottoman Empire broke apart, with the Turks confined to Turkey (Asia Minor).