Some advantages of the North had almost four times the free citizens they had many people to grow food in the factories to make them supplies they had more than 70% of the nation's Rail lines and they had very strong Navy and large fleets of private trading ships
Answer:
B is the correct answer.hope this helps :D
Explanation:
If your talking about the trans-Saharan trade, the answer is that the trans-Saharan trade route transformed West Africa by connecting it to the larger parts of the world. This trade route in particular was intriguing as it required the need for human adaptation and innovation over this vast desert area.
