The _____ is the central message or concern of a story or poem.supporting detailsymbolcontext cluemain idea

The correct answer is main idea.

The main idea refers to the central theme or the primary message that a story or poem conveys to its readers. It encompasses the overall insight or understanding that emerges from the narrative or the poetic work. This idea often captures the essence of the text and is supported by various details found within the plot, character developments, and thematic elements.

Supporting details bolster the main idea by providing evidence, examples, and illustrations that affirm it. The context can also frame the understanding of the main idea by considering the background, setting, or circumstances surrounding the text. Meanwhile, clues within the text can lead the reader to infer the main idea but are not synonymous with it.

In summary, to identify or articulate the main idea, readers typically analyze the core message that the author aims to communicate, supported by the text's specific details and context.