A. Developing a vaccine to prevent Polio. I just took the test :)
I'm gonna go with A & B " It provided a way for people to move west more easily." and "It created a mode for the transport of goods and services to the west." C is also somewhat applicable but I'm not 100% sure about C. Hope this helps.
The answer is State governments
Answer:
The prompt requires causation processing because it is asking how trade networks affect state formation. Causation describes causes and effects of historical development and the question is asking for the effect trade networks have on state formation in West Africa. 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:
