Final answer:
The term 'the South on Saturday' refers to a 'vernacular region,' which is defined by individual or cultural perceptions with no precise boundaries. Option C.
Step-by-step explanation:
The area described as 'the South on Saturday' would best be called a vernacular region. Vernacular regions are defined by the thoughts and perceptions of individuals based on cultural characteristics or shared traditions, and their boundaries are often not precisely definable.
These regions don't have formal boundaries and can vary widely in definition based on individual or cultural perspectives.
A vernacular region such as 'Dixie' in the United States may contain states, towns, and counties often recognized as southern, yet the exact constituents of this region are largely subjective and can change depending on who you ask.
So Option C is correct.