Answer:
B. By controlling salt and gold trade routes
Explanation:
The economic progression of Ghana from 750 to 1240 helped in the process of growth and territorial expansion by intensifying its trans-saharan trading activities in ivory, salt and gold. The development of huge urban complex also encouraged them in gaining monopoly over diffrent trading routes.
The Ghana Empire laid its dominance in Sahel region to the north of west African gold feilds. This enable Ghana to earn huge profit by the control of gold trade which turned region into wealthy and powerful.
Feudalism is the prevailing social framework in medieval Europe, in which the honorability held grounds from the Crown in return for military administration, and vassals were thusly inhabitants of the nobles, while the workers were obliged to live on their ruler's property and give him reverence, work, and an offer of the deliver, notionally in return for military insurance.
This is known as the Anaconda Plan.
This military strategy, developed by Union General Winfield Scott, was meant to starve the Confederacy out of their resources. Essentially, Scott felt that if the Confederacy could not trade for goods with other countries they would not be able to survive. This is due to the Confederacy's reliance on cotton as their main cash crop.
This strategy helps to explain why the US wanted to blockade trade with other countries as well as why the Union wanted to control the Mississippi River, as they knew control of this waterway could negatively impact the Confederacy's ability to transport/obtain resources.
