All of the documents listed contributed to the development of American values, but the best answer for a foundation for self-government and limited power is B. the Mayflower Compact.
The Mayflower Compact, signed in 1620 by the Pilgrims, established a form of self-governance and is often cited as an early example of a social contract and democratic principles in America. It emphasized the idea of legitimate government being based on the consent of the governed, which aligns closely with the values of self-government and limited power.