Which of the following persons is enrolled in a Division I institution under the National Collegiate Athletic Association?

The individual who is enrolled in a Division I institution under the National Collegiate Athletic Association is Abdul, as he is associated with a university that has big-time programs for football. Division I institutions cater to athletes engaged in high-profile sports like football, and they often provide scholarships and resources to support their athletic programs. This context aligns with the NCAA's structure, where Division I represents the highest level of college athletics competition in the United States, often characterized by significant recruitment and funding.

In contrast, Emma's focus on playing club tennis and targeting Division III schools indicates that she is interested in a different level of competition that does not align with the high-profile recognition and athletic scholarships typically found in Division I. Lucas, being a student manager for the basketball team, does not fit the description of an enrolled athlete, as his role is more administrative or supportive rather than participating as a competitor. Lastly, Sara’s interest in academic scholarships rather than athletic scholarships suggests that she is not directly engaged in collegiate athletics, which is essential for membership in any NCAA division, particularly Division I.