The greatest fear of the rulers of the austria-hungarian empire was that?
a) they would not be able to carve out colonies in africa.
b) their empire would be destroyed by nationalist forces.
c) their empire would be invaded and taken over by germany.
d) they would not have enough people to form an army.

The rulers of the Austria-Hungarian Empire had many fears about the war. The biggest fear they had was that they would have their government overthrown by a foreign invasion. This will make the answer C. The biggest fear that they had was their empire would be invaded and taken over by Germany. The correct answer is C.