To Whom Did the Austrian Leaders Felix Von Schwarzenberg and Franz

To whom did the Austrian leaders Felix von Schwarzenberg and Franz Josef appeal when faced with an independence movement in their country?

A) They sought help from Otto von Bismark, the Prussian minister-president.
B) They requested aid from Tsar Nikolai, who sent a large detachment of Russian troops to suppress the resistance.
C) They asked the Serbians to join the Austrians against a common enemy.
D) They appealed to the Hungarians' sense of honor and loyalty.
E) They played on the patriotism and prejudice of native Austrians to turn them against their Hungarian neighbors.