Question 4 of 10
 Following Archduke Franz Ferdinand's assassination, Austro-Hungarian
 leaders:
 A. executed nearly all prominent Serbs living in Austria-Hungary.
 B. threatened to invade Serbia if Serb leaders did not agree to a set
 of strict demands.
 C. aided the Ottoman Empire in its campaign to keep Serbia under its
 control.
 D. formed a military alliance with Great Britain to protect Austria-
 Hungary from future attacks.