The phrase 'iconographic lingua franca' in relation to The Great Gatsby most directly signals its prominence in which domain?

• A. Visual media
• B. Political theory
• C. Cultural imagery
• D. Economic policy

Answer: (C)

The main concept here is how symbolic imagery acts as a shared language across culture. In The Great Gatsby, Fitzgerald threads in iconic images—the green light, the eyes of Doctor T. J. Eckleburg, the valley of ashes, and deliberate color choices—that readers consistently recognize and interpret. These images function as a common visual vocabulary that conveys ideas about aspiration, illusion, and moral rot beyond any single scene or medium. Because the emphasis is on imagery that resonates across a culture, the correct domain is cultural imagery, rather than a specific visual medium, political theory, or economic policy.