What percentage of the white southern population belonged to the wealthy, Southern plantation-owning class?

5%

Explanation:

Estimate that only 5% of the white population of the southern states belonged to the wealthy landowning class. A large part of the white population had common jobs for the wealthy class, establishing a type of working class. Some white families owned small farms, but did not have enough assets to integrate the wealthy ruling class.

the answer would be choice c, cave paintings.