Final answer:
The four entities of the Greater Fraternity are Alpha Phi Alpha, Alpha Kappa Alpha, Kappa Alpha Psi, and Omega Psi Phi.
Step-by-step explanation:
The four types of entities generally associated with Greek life are fraternities (for males), sororities (for females), co-educational fraternities (which accept both males and females), and professional fraternities/sororities (focused on specific professional fields). However, if you are referring to the 'Greater Fraternity' within the context of the Divine Nine, you need to clarify that they consist of both fraternities and sororities. Fraternities and sororities like those within the Divine Nine—such as Alpha Kappa Alpha Inc., which holds prominent members like Kamala Harris and Toni Morrison—provide lifelong networks that extend beyond campus life.