It's for Wealth Tax so it's either C or D
To explain the "no west" comment, in 1812 the American "west" only reached as far as the Mississippi River.
The northern states were heavily involved in international trade, having the ports and ship building yards. The men who sailed on those ships were likewise mostly from the north and were the ones being impressed into the British navy. The agrarian south's interests lay entirely in the production of tobacco, cotton, sugar, sorghum and a few other large cash crops. The commerce was mostly within America and they had little interest in shipping issues.
C. Their fear of Man
In the Jungle Book, Shere Khan fears fire, so the answer can't be D. As well, light and heat are good things, so it can't be B and lastly, the animals can die in more ways than fire, so it isn't A. They fear fire because fire belongs to man, thus C is the correct answer.
Answer:
The slave code kept enslaved people frightened and powerless
