Answer:
suitable soil for planting and cultivating cotton
"Suitable soil for planting and cultivating cotton" contributed to the economic growth of the 19th-century South. Thus, option 'C' is the correct option.
What was the Southern economy in the early 19th century?The South was still mostly an agricultural region in 1860, and it was heavily reliant on exporting its primary foods to the global market. The most valuable export from the United States by 1815 was cotton, and by 1840 it was worth more than all other exports put together. Yet, while producing two-thirds of the world's cotton, the southern states had limited industrial capacity, only approximately 29% of the nation's railroad tracks, and only 13% of its banks.
Although the South did try exploiting slave labor in industries, its agricultural economy served it well for the most part. In contrast, the North was making good progress toward an industrial and commercial sector, which would directly affect its capacity to wage war.
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