A) Constitution of Massachusetts (1780), U.S. Constitution (1789) INCORRECT The Constitution of Massachusetts and the U.S. Constitution are foundational documents for governance, but they do not specifically address surveying property or the admission of new states. The U.S. Constitution does include provisions for admitting new states, but it does not establish surveying principles. The Land Ordinance and Northwest Ordinance were the specific laws that created the framework for surveying and statehood.
B) Mayflower Compact (1620), Articles of Confederation (1781) INCORRECT The Mayflower Compact was an early agreement for self-governance among Pilgrims, but it did not address land surveying or state admission. The Articles of Confederation was the first U.S. constitution, but it lacked provisions for surveying and did not establish a clear process for admitting new states. The ordinances were enacted under the Articles, but they are distinct documents.
C) Common Sense (1776), Declaration of Independence (1776) INCORRECT Common Sense was a political pamphlet advocating independence, and the Declaration of Independence announced the colonies' separation from Britain. Neither document deals with surveying property or the mechanics of admitting new states. They are philosophical and political statements, not legal frameworks for land management.
D) Land Ordinance (1785), Northwest Ordinance (1787) CORRECT The Land Ordinance of 1785 established a systematic method for surveying and selling western lands, creating a grid system that is still visible today. The Northwest Ordinance of 1787 provided a clear process for territories to become states, ensuring they would have equal rights and prohibiting slavery in the Northwest Territory. Together, these ordinances set the precedent for the orderly expansion of the United States and the admission of new states, making them the correct answer.