The Confederacy didn't want to use African Americans and other slaves as soldiers because it feared rebellion.
So they resorted to using only their people, the natives so as to avoid any needless confrontations.
The landscape of canyons, deserts and cactus is the best example of the mixed cultural and national heritage of the Southwest.
Answer: Option B
<u>Explanation:</u>
In the region of South west, there was not only the presence of one culture, there was a mix of number of cultures which were prevailing in that area. This place was also known for the heritage which was rich and diverse.
The proof for this was that there was landscape which had cactus, desert and canyon which grew on the land of region of South West which showed diversity and a number of cultures prevailing in that South west region.
In January 1876, the Sioux and the Cheyenne were ordered to leave the Black Hills area of South Dakota, which had been designated by treaty for them because gold was discovered in the Black Hills of South Dakota and the US government was unable to keep gold prospectors and others out of the area which had been given to the Sioux in a treaty. I hope that this is the answer that you were looking for and it has helped you.