Final answer:
The element in a story that the reader can use to understand the story's theme is the plot.
Step-by-step explanation:
Plot
The element in a story that the reader can use to understand the story's theme is the plot. The plot encompasses the events and actions that occur in a story, including the conflict, climax, and resolution. By examining the plot, the reader can identify patterns and recurring themes, which contribute to the overall message or lesson of the story.
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