Final answer:
Repetition is often employed by authors as a rhetorical device to highlight the importance of a specific theme or idea within a text.
Step-by-step explanation:
The most likely reason the author uses repetition is to highlight the importance of Mrs. Gonzalez's personal connection. Repetition is a rhetorical device used to emphasize key themes and ideas in a text. It can create a sense of urgency, importance, or even a deep understanding of a particular subject. For instance, the repetition of a green light in The Great Gatsby spreads as a motif throughout the text, alerting readers to its significance. Similarly, an author may repeat a phrase about Mrs. Gonzalez's personal connection to underline its centrality in the text, making readers pay more attention to it each time it appears.