What term describes a series of newspaper articles published in support of ratifying the new constitution?

The term that describes a series of newspaper articles published in support of ratifying the new constitution is the Federalist Papers. This collection of 85 articles and essays written by Alexander Hamilton, James Madison, and John Jay was intended to promote the ratification of the United States Constitution. The Federalist Papers played a crucial role in explaining the principles and advantages of the new government structure proposed by the Constitution, addressing concerns and counterarguments posed by opponents of ratification, known as the Anti-Federalists.

The other options, such as Constitutional Amendments and the Bill of Rights, refer to changes or additions to the Constitution itself rather than articles advocating for its ratification. Additionally, the Declaration of Independence is a fundamental historic document declaring the colonies' intention to separate from British rule and did not pertain specifically to the ratification of the Constitution.