Which of the following literary works is an example of an allegory?

Animal Farm is an exemplary work of allegory because it uses a narrative featuring animals to represent and critique real human behaviors, societal structures, and political ideologies. George Orwell wrote this novella to not only tell a story about farm animals but also to illuminate the events and outcomes of the Russian Revolution and the rise of totalitarianism. Each character and event in the story symbolizes deep-rooted social and political concepts, such as the dangers of power and corruption, making it an effective device to convey complex ideas in a simpler, more accessible format. The use of allegory allows readers to engage with profound themes while evaluating their relevance to real-world scenarios. This quality distinguishes it distinctly from the other literary works mentioned, which serve different narrative and thematic purposes.