Why couldnt slaves earn property

The Alabama Slave Code of 1852 was a list of laws about bondage. The code was long and mostly controlled the behavior of enslaved Africans, but it also made rules that affected whites and showed how they felt about slaves.

1. No slave must go beyond the limits of the plantation on which he or she resides, without a pass, or some letter from his master or overseer.

2. No slave can keep or carry a gun, powder, shot, club, or other weapon..

3. No slave can, under any presence, keep a dog.

4. No slave can own property.

5. Not more than five male slaves shall assemble together at any place off the plantation.

as a result of the development shown on the graph,prices will most likely : the answer is rise

i really really really really really really dont know