The right answer is B)Northwest Ordinance of 1787.
The Northwest Ordinance constructed the Northwest Territory a area north of the Ohio River and west of Pennsylvania. In its content it established conditions for governing the western territories such as self-government and statehood. The Northwest Ordinance of 1787 had larger importance, beyond establishing a formal procedure for transforming territories into states. It represented a sharp break with the imperialistic assumption behind European expansion into the Western Hemisphere: the new states were to admit to the American republic as equals rather than treated as subordinate colonies.
