Which of the following did the south’s economy rely on before the civil war? the plantation system immigrant labor manufacturing trade

Option A.

Explanation:

The plantation system, is the right answer.

Prior to the Civil War in America, the economy of South heavily relied on the plantation system. The climatic factors contributed to the growth of the plantation in the South. In the plantation system, only a single crop usually the cash crop was grown. As the farms were very large and cash crops were labor extensive, the landowners began engaging slaves on farms.