Based on the statements provided, the most accurate one that can be inferred without having the actual map is likely: "Most states in the South had at least two crops on which their economy relied." This interpretation suggests a diversity in agricultural production within the southern states, which was common during that period, as they often cultivated multiple cash crops such as cotton, tobacco, and sugar.
The other statements either indicate absolute conditions (no crops or monopoly) that may not be supported by the map or are too specific. If possible, reviewing the actual map details would be necessary for a definitive conclusion.