What does the term allusion refer to in literature?

The term allusion in literature refers to an indirect reference to well-known concepts, events, or figures, which can enrich the text by drawing upon the reader's existing knowledge and understanding. This technique allows authors to convey deeper meanings and associations without explicitly stating them, relying on the reader's familiarity with the referenced material. For example, an author may allude to a myth or a historical event to enhance the themes or emotions in their work, creating a more layered and engaging reading experience.

The other options do not accurately describe allusion. Using logical arguments for persuasion pertains to rhetoric and argumentation, repeated phrases for emphasis relate to the use of anaphora or reiteration in writing, and deciding between two extreme options describes a false dichotomy that doesn't involve reference to external concepts or knowledge.