Final answer:
The quote C. "Throughout the story, a recurring idea emerges." indicates that the theme is being presented through recurring elements, which is key in understanding the overarching message or universal ideas in literature.
Step-by-step explanation:
The quote that reveals where the theme emerges is C. "Throughout the story, a recurring idea emerges." This statement suggests that within the story, there is a consistent theme presented through a motif or concept that repeats itself, drawing attention and ultimately contributing to the overall message or theme of the work. Authors convey themes through the repeating patterns of motifs, character development, plot points, and conflicts that align to express broader statements about life, humanity, or societal issues. Themes often reflect universal ideas and are central to the meaning of a story.