The correct answers are: It approved of the use of force upon dissenters. It approved cruelty and deceitfulness in order to maintain the balance of power.
The printed version of The Prince by Niccolo Machiavelli was first published in 1532, although the manuscript was known many years before that. The Prince is a political treaty famous for giving advice on political matters and for giving independence to the political realm from the fields of religion and morality. In fact, The Prince advocates for strong political measures to be taken in order to keep the power of the state, for example, if the use of force is necessary in order to silence dissenters then it must be applied. Machiavelli says that if a political leader must choose between being loved or being feared, then fear is preferable to love, in that way he would ensure obedience. Cruelty and deceitfulness are equally good political tools to keep the balance of power in his favor, for example, they can be applied in order to divide the opposition and concentrate the power.