How did these laws limit the 13th Amendment?

Most former slaves had no skills other than working on the plantations and these laws made it possible for African Americans to keep working on the farms.
Most former slaves were unruly and violent toward their former masters and these laws prevented white citizens from being harmed.
Most former slaves wanted to continue to work for their masters and these laws prevented them from continuing to work in areas in which they were most skilled.
Most former slaves had no employment and these laws made it possible to keep African Americans in a

Question

How did these laws limit the 13th Amendment?

 Most former slaves had no skills other than working on the plantations and these laws made it possible for African Americans to keep working on the farms.
 Most former slaves were unruly and violent toward their former masters and these laws prevented white citizens from being harmed.
 Most former slaves wanted to continue to work for their masters and these laws prevented them from continuing to work in areas in which they were most skilled.
 Most former slaves had no employment and these laws made it possible to keep African Americans in a

pepper08 · Answer

I think it's C since a few slaves would willingly stay to work for their masters since there was much racial discrimination and it'd be hard for them to find a place to work and live.