Which novel focuses on themes of ambition and the American Dream?

The Great Gatsby is a quintessential exploration of themes related to ambition and the American Dream. The novel is set in the 1920s and captures the essence of that era's fascination with wealth, social status, and the pursuit of success. Through the character of Jay Gatsby, Fitzgerald illustrates the lengths to which individuals will go to achieve their dreams and the often tragic consequences of that ambition. Gatsby’s extravagant lifestyle and his relentless pursuit of Daisy Buchanan serve as a critique of the idea that anyone can climb the social ladder purely through hard work and determination. Ultimately, The Great Gatsby reveals the elusive nature of the American Dream and reflects on its capacity to lead to both hope and disillusionment.

Other options do touch on various themes but don't focus primarily on ambition within the context of the American Dream. The Scarlet Letter delves deeply into sin, guilt, and societal judgment. Invisible Man addresses racial identity and the struggle for self-definition in a society that marginalizes individuals. Hills Like White Elephants explores communication and choices in relationships, specifically around the complexities of an unspoken dilemma. While these works are significant, they do not centralize the themes of ambition and the American Dream as powerfully as The Great Gatsby does.