Answer:
they did not have to do all the work themselves
Explanation:
Answer:
The Correct answer is C: Production reaches its highest point, and then the economy begins to contract.
Hope this helps
Explanation:
Just compare a river map of West Africa to a map of West African kingdoms.
You can clearly see that all of these kingdoms form around the Niger River.
More support to this: None of these other rivers are even in Africa: The Thames is in England, the Indus is in Pakistan, and the Euphrates runs through the Middle East.