Answer:
The question limits what the writer can include about trans-Saharan trade networks to only state formations and limits the networks to only trade networks. It also limits the location of networks to trans-Saharan and limits state formation to West Africa. The writer can choose different trade networks and can pick one or many West African states.
Explanation:
Answer:
You can only talk about one kind of trade, the trans-Saharan trade. It also limits location to West Africa. The writer can choose one of the West African states affected by the trans-Saharan trade.
Explanation:
It makes sense.