Based on the statements provided, the most reasonable inference that can be drawn from the painting is: "Since there are over 20 slaves in the image, the plantation owner would be considered a member of the cottonocracy." This statement aligns with historical context, as the cottonocracy refers to wealthy plantation owners in the South who profited from cotton production and relied heavily on slave labor.
The other statements do not provide strong logical connections or valid inferences based on the information given.