(A) United States, Great Britain, France
(B) Ottoman Empire, Italy, Austria-Hungary
(C) Germany, Austria-Hungary, France
(D) ** Germany, Austria-Hungary, Ottoman Empire
EXPLANATIONS BELOW
Concept note-1: -The Allies described the wartime military alliance of Germany, Austria-Hungary, Bulgaria and the Ottoman Empire as the ‘Central Powers’.
Concept note-2: -The Central Powers included Germany, Austria-Hungary, the Ottoman Empire and Bulgaria.
Concept note-3: -By 1910 most of the major states of Europe belonged to one or the other of these great opposing alliances: the Central Powers, whose principal members were Germany and Austria-Hungary, and the Allies, composed of France, Russia, and Great Britain.
Concept note-4: -The three emperors: Kaiser Wilhelm II, Mehmed V, Franz Joseph. A postcard depicting the leaders of the Central Powers.