Answer:
I believe that the answer is B. Cotton farmers grew rich because France paid higher prices than those paid by the North.
Explanation: The Civil War affected the Southern economy by 1815, cotton was the most valuable export in the United States; by 1840, it was worth more than all of the other exports combined. But, while the Southern states produced two- thirds of the world's supply of cotton, the South had little manufacturing capability, about 29 percent of the railroad tracks, and only about 13 percent of the nation's banks. The South did experiment with using slave labor in manufacturing, but for the most part it was well satisfied with its agricultural economy. The North, by contrast, was well on its way toward a commercial and manufacturing economy, which would have a direct impact on its war making abilities. By 1860, 90 percent of the nation's manufacturing output came from Northern states. The North produced 17 times more cotton than in the South. Other Northern industries such as weapons, manufacturing, leather goods, iron production, textiles, grew and improved as the war progressed. But, the same was not true in the South. The twin disadvantages of a smaller industrial economy and having so much of the war fought in the South hampered Confederate growth and development. Southern farmers (including cotton growers) were hampered in their ability to sell their goods overseas due to Union naval blockades. Union invasions into the South resulted in the capture of Southern transportation and manufacturing facilities.