Final answer:
The organizational structure of the passage supports the author's purpose by using a proposition and support structure to explain the advantages of having a burrito bar in the cafeteria.
Step-by-step explanation:
The organizational structure of the passage supports the author's purpose through a proposition and support structure that explains the advantages a burrito bar would bring. The author presents the idea of having a burrito bar in the cafeteria and then provides supporting points such as the popularity of burritos among junior high students and the ability to prepare personalized and healthy lunches. This organizational structure effectively persuades the reader that adding a burrito bar would be beneficial.