The correct answers are:
B. Threaten Sancho Panza if he does not obey orders
In his book "The Prince", Niccolo Machiavelli states that the use of threat as a tool of coercion is a very effective way to maintain and execute power. He asserts that is better to be feared by the people than to be loved by them in order to be powerful.
C. Trick others in order to achieve his goals
Machiavelli posits that a ruler should be honest always, but if the circumstances required him to lie and to cheat then he should do so, but always keeping a sincere appearance in front of the people.