Option A. The best option to fill the space is the North west ordinance prohibited the use of slaves
What was the Northwest Ordinance
The Northwest Ordinance, enacted by the U.S. Congress in 1787, was a crucial legislative framework guiding the admission of new territories into the United States.
It outlined guidelines for territorial organization, criteria for statehood, land division policies, and regulations concerning slavery and Native American rights. This landmark ordinance aimed to facilitate the expansion of territories into states while promoting republican governance, public education, and respect for indigenous populations.