The correct answer is B. The Prince
Step-by-step explanation
The Prince by Niccolò Machiavelli officially published in 1532 deals with political power including strategies to get the power or keep the power of a state, actions a Prince should or should not do, qualities of a Prince, ways to keep security and peace and other philosophical reflections related to power and politics. These reflections included Machiavelli idea that to keep the power or achieve certain goals a Prince should use any means that are necessary, thus betrayal, murder and other actions are valid and recommended if they guarantee the power or support the actions of the Prince. In this way, in The Prince Machiavelli justified politicians could use any means to achieve a goal, as the important is the result and now how this was achieved.