Why Did the Leadership of Austria and Russia Try to Turn

Why did the leadership of Austria and Russia try to turn the Quadruple Alliance into an agency that would forcefully intervene against countries' internal revolutionary or democratic or liberal movements?

A) Because they feared the rise of communism
B) Because of the idea that the spirit of liberalism had perpetuated the French Revolution
C) Because they believed any internal strife could upset carefully built alliances
D) Because they feared the spread of dissent from one country to another
E) Because they feared that Great Britain would promote these movements