Which of the following is not a division of the NCAA?

The reason for selecting Division IV as the correct answer is that, in the structure of the NCAA, there are only three recognized divisions: Division I, Division II, and Division III. Each of these divisions has its own set of rules and regulations governing the participation and governance of its member institutions.

Division I is known for its high level of competition and larger athletic budgets, while Division II provides a balance of athletics, academics, and extracurricular activities. Division III, on the other hand, emphasizes the overall college experience of student-athletes by not offering athletic scholarships. Since Division IV does not exist within the NCAA framework, it is the answer that accurately reflects a non-existent division.