Final answer:
The green light in the novel represents the unattainable dream.
Step-by-step explanation:
The green light in the novel The Great Gatsby represents the unattainable dream. It is a symbol of Jay Gatsby's hope and longing for his romantic relationship with Daisy Buchanan, which he believes will bring him happiness and success. The green light is situated across the water from Gatsby's mansion, representing the physical and emotional distance between Gatsby and his dream.