A) Halfway Covenant INCORRECT The Halfway Covenant was a 1662 Puritan religious compromise in New England that allowed partial church membership to those who had not experienced conversion. It was not a political framework or a document establishing government, but rather a theological adjustment to maintain church influence as religious fervor declined. Therefore, it does not relate to majority rule or democratic governance.
B) Mayflower Compact CORRECT The Mayflower Compact, signed in 1620, was the first written framework of self-government in the English colonies. It established a 'civil body politic' and agreed to make laws for the general good, with decisions made by majority vote. This document is a foundational example of social contract theory and consent of the governed, directly influencing American democratic principles.
C) Columbian Exchange INCORRECT The Columbian Exchange refers to the widespread transfer of plants, animals, culture, human populations, technology, and diseases between the Americas, West Africa, and the Old World in the 15th and 16th centuries. It was a biological and cultural phenomenon, not a political document or framework of government. Thus, it is unrelated to the establishment of majority rule.
D) Northwest Ordinance INCORRECT The Northwest Ordinance of 1787 was a law passed by the U.S. Congress to create a structured government for the Northwest Territory, establishing a process for admitting new states. While it was an important step in westward expansion and included a bill of rights, it came much later than the colonial period and was not the first written framework of democratic government in the colonies.