A) limited monarchy INCORRECT A limited monarchy is a system where a monarch's power is constrained by a constitution or laws. While the colonists were opposed to the absolute monarchy of King George III, they did not seek to establish a monarchy in the new nation. Instead, they created a republic, where power resides in the people and their elected representatives. The Constitution does not include a monarchy, limited or otherwise, as it was designed to be a government by the people. Therefore, this option does not reflect a principle included in the Constitution as a response to the Declaration of Independence.
B) universal suffrage INCORRECT Universal suffrage, or the right of all adults to vote, was not a principle included in the original U.S. Constitution. At the time of its drafting, voting rights were typically restricted to white male property owners. The Constitution left voting qualifications to the states, and it was not until later amendments (such as the 15th, 19th, and 26th) that suffrage was expanded to include African Americans, women, and 18-year-olds. The Declaration of Independence did not explicitly call for universal suffrage, and the Constitution did not address it as a response to colonial grievances. Thus, this option is incorrect.
C) unitary government INCORRECT A unitary government is one in which all power is centralized in a single national government, with subnational units having only powers delegated to them. The U.S. Constitution, however, established a federal system, which divides power between the national government and state governments. This federal structure was a deliberate compromise to address the colonists' fear of a strong central authority, as they had experienced under British rule. The Articles of Confederation, which preceded the Constitution, had created a weak central government, but the Constitution sought to balance power between national and state levels. Therefore, a unitary government is not a principle included in the Constitution.
D) separation of powers CORRECT Separation of powers is a fundamental principle in the U.S. Constitution that divides government into three branches: legislative, executive, and judicial. This structure was a direct response to the grievances in the Declaration of Independence against King George III, who had concentrated power in his hands. The colonists believed that by separating powers and creating checks and balances, they could prevent any one branch from becoming tyrannical. This principle was influenced by the ideas of Enlightenment thinkers like Montesquieu, who argued that liberty is best protected when governmental powers are not united. The Constitution's design ensures that each branch can limit the others, safeguarding against abuse of power. This principle remains a cornerstone of American democracy, reflecting the Founders' commitment to preventing the kind of arbitrary rule they had rebelled against.