C because that what the hunters and gatherers had to do in order to survive
About 10 percent speak Swahili, the lingua franca of Southeast Africa; about 5 percent speak a Berber dialect; and about 5 percent speak Hausa, which serves as a lingua franca in much of the Sahel. Other important West African languages are Yoruba, Igbo and Fula.
Every normal cell of the body.
I guess that it was the fact that people would finally be able to communicate and understand one another. Hope this helps!
