In which document is the U.S. Constitution found?

The correct answer is identified as "The Constitution," which is the foundational document that establishes the structure, functions, and limitations of the government of the United States. It was drafted in 1787 at the Constitutional Convention in Philadelphia and serves as the supreme law of the land.

The Constitution outlines the framework of the federal government, including the legislative, executive, and judicial branches, and details the rights and responsibilities of the states and the citizens. An essential feature of the Constitution is that it can be amended, allowing for changes and additions to be made as society evolves.

The other options refer to different historical documents that serve distinct purposes. The Declaration of Independence is primarily a statement declaring the colonies' independence from British rule, while the Articles of Confederation served as the first constitution for the United States but were ultimately replaced by the current Constitution due to their inefficiencies. The Bill of Rights, consisting of the first ten amendments to the Constitution, specifically addresses individual rights and limitations on government power but is not the Constitution itself.