Final answer:
Whataburger's biggest fans could include diverse groups like college students, truck drivers, tourists, and senior citizens, each with their reasons for patronizing the brand.
Step-by-step explanation:
The question regarding Whataburger's biggest fans is not one that can be answered definitively without specific data to support the claim. Whataburger is a popular fast-food chain known to have a diverse customer base. Traditionally, all of the groups mentioned, including college students, truck drivers, tourists, and senior citizens, might be considered fans of Whataburger for various reasons. College students may frequent Whataburger for its budget-friendly options and late hours, truck drivers might appreciate its convenient locations along highways, tourists could enjoy trying a regional favorite, and senior citizens might be fans due to the nostalgia and consistency of the brand.