Answer: The principle of the Constitution that is being discussed in this passage is A) separation of powers.
Step-by-step explanation: In The Federalist Papers, N° 47, James Madison makes reference to the importance of the separation of powers. He revises the division of powers included in the United States Constitution, which contemplates the legislative, the executive and the judicial branches. Moreover, in order to present his view, Madison resorts to the ideas of Montesquieu, who believed that separation of powers was essential to achieve liberty.