Answer:
Slavery was allowed in the Southern Colonies, but was abolished above the Mason-Dixon line in the Middle Colonies and New England.
Step-by-step explanation:
The Mason–Dixon line, which was originally surveyed to serve as a boundary dispute resolution between Maryland, Pennsylvania, and Delaware (present day middle states and new England ) around the 1760s. This line later became the dividing line between the free states in the North and the slave states in the South.
Hence, in this case, the correct answer is " Slavery was allowed in the Southern Colonies, but was abolished above the Mason-Dixon line in the Middle Colonies and New England."