Which is the land that lies between the mississippi river and the rocky mountains?
a. the southwest
b. the far west
c. the northwest
d. the great plains

The Great Plains is the answer

Just think, why was it effective? -it appeled to critics because it was written well, that made it noticeable to the public including the white population-it was also recognizable to the african americans because it was about their heritage.-it was powerful just keep finding more points and elaborate on them. message me if you need more