The Military Often Takes Power During Periods of Political Instability

The military often takes power during periods of political instability (including violence by radical groups) ,promising to restore stability.How successful have they been?

A) In a number of counties they crushed strong subversive groups and restored order, but often at a tremendous cost in civil liberties and human life
B) They restore stability in the short run but don't stay in power long enough for it to last
C) Because of the public backlash against military repression, instability escalates quickly
D) In general, the armed forces has restored order while only slightly violating human rights
E) Usually, as instability gets worse, the military is forced to step down rather quickly