C: Anytime you see the word "freedom" in an answer, you better work pretty hard not to choose that answer.
D: You cannot be loyal to those who demand respect while holding a gun to your head. The best you can do is be obedient and live another day to fight back.
A: Often those who rise to power do so quickly and ruthlessly. The process of gaining control is often out of the hands of the victims. They lack the weapons, leadership and organization to rise against such enemies.
B: A government can collapse without falling into rule by dictatorship. Though the rise of Napoleon is important and does represent the loss of normal rule, C is the better answer.
This usually refers to the antagonist , this is the character(s) (or situation) that represents the opposition against which the protagonist must contend. In other words, the antagonist is an obstacle that the protagonist must overcome.
