Here is your answer:
Your answer is C Articles of Confederation.
Reason: The articles of Confederation was known as the first form of government and the weakest of all the governments that were created! Also its not A because the U.S constitution is e present government that the United States (US) has its not B because the mayflower compact is a document not a government. Also when it came down to rather C or D I choose C because D The declaration of Independence is a document containing laws it is unowned as a government because of the laws but it is also known as a "scared document" which makes it not really a government but its still use today such as the Bill of Rights containing the amendment and separation of powers (checks and balances) which has the three forms of government and to make sure all three of them don't get more powerful than the other (legislative, executive, and judicial)!
Your answer is C.
