Answer :
The correct answer is A) the farms in the south did relay on slave labor.
The primary way that the farms in the south differed from those in the north was that he farms in the south did relay on slave labor.
Cotton was the king in the southern states. Indeed, the south based its economy in agriculture. To produce cash crops in the plantations, southerners needed slaves. That is why slavery was so important in the southern states. In the north, there were many industries and factories. so many jobs were created for industry workers.
The other options of the question were B) the farms in the south raised cash crops using a plantation system. C) the farms in the south only provided crops to southern families. D) were pushed aside for other industries.