The best example of "limited government" in the United States national government from the options provided is A The Bill of Rights.
The Bill of Rights consists of the first ten amendments to the Constitution, which specifically enumerate certain rights and liberties that the government cannot infringe upon, thereby limiting the power of the government over individuals. The Federalist Papers, while discussing the framework of government, do not specifically focus on limiting government power in the same way. The Emancipation Proclamation and the Declaration of Independence are important historical documents, but they do not directly represent the concept of limited government as clearly as the Bill of Rights does.