In “the prince” what concept did machiavelli propose and what did that mean for rulers? (need an answer fast)

hello, machiavelli's highly influential treatise on political power the prince shocked in his own time, machiavelli was known as the author of histories, poems, and   machiavelli had become synonymous with diabolical cunning, a meaning that it is machiavelli's advice to the current ruler of florence on how to stay in power.

hope this ! and have good day.

answer; i believe that the correct answer is (c) arctic tundra;