They promoted Africans to identify as African, not as any "clan" or "faction" so that all the different African group's could get along withing the confines of there nations, that where drawn by Europeans to look nice and don't have any historic regard to cultures or ethnic groups.
To briefly compare both terms, geography refers to the study of the physical features of the earth as well as its inhabitants or the population; whereas, geology refers to the study of the structure of the earth, its development as well as its origin.
The answer would be C.
The Compromise of 1877, settled the intensely disputed 1876 presidential election. It resulted in the United States federal government pulling the last troops out of the South, and formally ending the Reconstruction Era.