The removal of black legislators from the Georgia General Assembly during Reconstruction primarily took place in the Piedmont region, which includes major areas such as Atlanta, where significant political activity occurred. While the Coastal Plain region also had some involvement, the Piedmont is most directly associated with the legislative actions during this period.
So the correct answer would be:
A. Coastal Plain
B. Piedmont
If you have specific historical contexts or events in mind that might relate to other regions, please provide that information for a more nuanced answer!