The correct option is E restricted slavery in areas yet to be admitted as states.
Both the Northwest Ordinance of 1787 and the Missouri Compromise of 1820
restricted slavery in areas yet to be admitted as states. The Northwest
Ordinance forbade slavery in the Northwest Territory, while the
Missouri Compromise forbade slavery north of the 36° 30' line of north
latitude across the Louisiana Purchase. The Northwest Ordinance provided
that no less than three or more than five states were to be created in
that territory, but the Missouri Compromise contained no such guidelines
(A). The Missouri Compromise provided for the admission of Maine as a
free state and Missouri as a slave state, but no new states were
admitted to the Union by the Northwest Ordinance (B). Land for public
schools was set aside by the Land Ordinance of 1785 and mentioned in the
Northwest Ordinance, but the Missouri Compromise does not discuss this
issue (C). The Northwest Ordinance provided for fair treatment of the
Native American population, while the Missouri Compromise does not
address this issue (D).