Which of the Following Best Describes Machiavelli's Economy of Violence

Which of the following best describes Machiavelli's economy of violence theory?

A) Leaders should always use violence to achieve goals.
B) Leaders should never use violence to achieve goals.
C) Leaders should use violence only when necessary to achieve goals.
D) Leaders should use violence only when it can lead to an economic gain.
E) Leaders should use violence only against external, not internal, enemies.