How did Black Codes suggest new ideas about slavery on the part of white Louisianans? A. They reflected a declining dependence on slavery and the transition to a free labor system to fulfill labor needs
B. They modified rules about slavery and the responsibilities slave owners had in protecting and caring for enslaved people
C. They gave new rights and privileges to enslaved people as a way to avoid slave uprisings
D. They indicated a growing concern that large numbers of free blacks and slaves in the state could lead to future conflict