Which of the following is NOT true? a
In 1908, Austria annexed, or took over, Bosnia and Herzegovina.
b
Austria-Hungary, itself a mostly Slavic nation, supported Serbian nationalism.
c
Bulgaria, Greece, Montenegro, Romania, and Serbia had already succeeded in breaking away from their Turkish rulers, the Ottoman Empire.
d
Serbia had a large Slavic population and hoped to absorb all the Slavs on the Balkan Peninsula.

b. Austria-Hungary, itself a mostly Slavic nation, supported Serbian nationalism.

Explanation:

Austria-Hungary may have had a large Slavic population but were not Slavs themselves with the Austrians being German. Austria-Hungary hated Serbian nationalism and sought to curtail the independence of the Serbian nation.

It was this reason that led to Serbian nationalists killing Archduke Franz Ferdinand of the Austria-Hungary empire, a killing which led to the first conflict in the first World War and led to the start of the most brutal war the world had seen at the time.

it was on the rise and doing very well and would continue to do well until the great depression from 1929-1939