The answer is B.... pretty sure.
There are several states that flourished as a result of trade between the Sahel across the Sarah with north African crab traders and the Levant world. these city states included Timbuktu that had the earliest form of university in the world , GAO,<span>Djene. The city states often levied trade and were located along the trade routes.</span>
I think the empires have the command and market economies becoz the empires command and also runs the market economies.
You have to explain so where is that article we have to wait
The states had more power than the natural/central/federal government They could not raise and army, collect taxes or regulate trade interstate or foreign tasks HOPE THIS HELPS ;)
