Answer:
Serbian nationalism is what caused war
Explanation:
nationalism in a whole started coming into play during the 1860s and would lead to the formation of a German state known as the German Empire It also unified separate Balkan states under nationalities like Bulgaria, Greece, Serbia, Romania, ect.
Answer:
c
Explanation:
Hope it Helps have a great day
Uhhhhhh i think the answer is 'c' :)