Final answer:
The relationship between the Upper South and the Deep South was influenced by the prevalence of slavery and the economic factors surrounding it. The Deep South had a stronger commitment to slavery, with larger numbers of slaveholders and enslaved people. The Upper South had a smaller population of slaveholders and saw stronger pro-Union sentiment in some areas.
Step-by-step explanation:
The relationship between the Upper South and the Deep South can be understood in the context of slavery in the United States. The Deep South, consisting of states like South Carolina and Georgia, had a stronger commitment to slavery and was home to a larger number of both slaveholders and enslaved people. The Upper South, on the other hand, had a smaller population of slaveholders and had a stronger pro-Union sentiment in parts of the region.
Slavery in the Upper South was not as deeply entrenched as it was in the Deep South, and there were areas where pro-Union sentiment remained strong. In contrast, the Deep South remained passionately committed to the African slave trade, with some slaveholders revoking offers of freedom for war service and forcing freed black people back into bondage.