What is the primary requirement for receiving scholarships endowed by Delta founders and past presidents?

The primary requirement for receiving scholarships endowed by the founders and past presidents of Delta Sigma Theta is being a member of Delta Sigma Theta. This reflects the organization's commitment to supporting its members in their educational endeavors. The scholarships are specifically designed to assist those who are part of the sorority, emphasizing the value placed on membership and personal development within the organization.

The other options, while potentially relevant in different contexts, do not capture the central focus of the scholarship criteria as clearly as membership in the sorority does. High school status, involvement in community programs, or project proposals may be components of various scholarship applications, but they do not align with the specific intent behind the scholarships endowed by the founders and past presidents of Delta Sigma Theta.