Answer:
A. Separation of powers
Explanation:
From the four choices mentioned, separation of powers is the only one that influenced the early United States government.
Separation of powers is an idea developed by Enlightenment philosophers, like Locke, Voltaire, and Montesquieu. According to this concept, political power should be divided into the Executive, Judiciary, and Legislative as independent and autonomous organs of government, in order to avoid concentration of power in one single organ of government. This concept developed in the 18th century by the referred philosophers was applied for the first time by the government of the United States of America, the first modern republic, which was established after the independence in 1776. When the American Constitution was enacted, division of powers and powers counterbalance systems were included as main properties of the new government.
