The correct answer is C) entrepreneurs built new factories to meet rising consumer demand.
The other options of the question were A) Southern whites began to doubt the benefits of slavery. B) the South became too dependent on one crop, limiting development. D) planters built plantation schools to educate enslaved workers.
What happened as agriculture became entrenched in the south was that entrepreneurs built new factories to meet rising consumer demand.
The economy in the southern states was based on agriculture. And for agriculture to be successful, plantation owners used slaves, so slavery was an important component of the success of agriculture in the southern states. These plantations depended basically on cotton that was exported. The cotton industry increased the demand for workers that earned a low wage. So the southern states depended so much on agriculture when, at the same time in the northern states, the industry was developing and factories were being built.