Frankie already has a pair of basketball shoes that he can wear for the tryout, which makes the new pair a. if frankie did not have a pair of basketball shoes for the tryout, the new shoes would be considered a.

C. They help the reader better understand the information.

Explanation:

The writers employ "organizational features" in order to divide the book into separate compartments which makes it convenient for the readers to search and read. This would assist them to have a fair idea about the contents of the book and they would understand the information in a better manner. The headings at the top would assist in illustrating the central idea or what the text is about and prepares them accordingly. Sub-headings hints the readers regarding the classification of a wide topic into parts. Thus, the use of organizational features implies the reason for better understanding among the readers for effective and worth analysis and interpretation.