Final answer:
Nick quickly discovers that Tom is cheating on Daisy, revealing themes of infidelity and moral decline.The correct option is C.
Step-by-step explanation:
Nick quickly discovers that Tom is cheating on Daisy during his visit with his cousin Daisy and Miss Baker. This revelation of Tom Buchanan’s infidelity is a critical early insight into his character and foreshadows the tensions and conflicts that will arise throughout the narrative. Nick’s observation and the subsequent unfolding of events showcase the themes of deceit, social class, and moral decay that are central to the plot of 'The Great Gatsby' by F. Scott Fitzgerald.