Answer:
The text structure found in this passage is: D. descriptive.
Explanation:
When an author uses a descriptive text structure, his/her purpose is to create a vivid image of something in readers' minds. In this case, the author wants us to be able to picture how beautiful the banana split was. He/She gives us a detailed illustration of the ingredients, their positions and order, their flavors. Words such as "thick web" and "huge puff" add to the imagery, allowing us to truly see it in our minds, those adjectives supporting our imagination.