After reading the text, we can choose the following as the best narrative technique that the author could use to enhance it:
B. A reflection to acknowledge how the server's offer prompted a change in the narrator.
The theme of the passage is all about giving food a second chance. That is what the narrator does when it comes to the yellow beets.
For that reason, the text would be enhanced if the author provided a reflection to acknowledge that the server's offer motivated a change in him.
After all, if it weren't for the server, the narrator would not have tried the yellow beets at all.
With that in mind, we can choose letter B as the best option.
Learn more about narrative techniques here:
https://brainly.com/question/13997145