Final answer:
Alpha Phi Alpha's corporate headquarters is located in Baltimore, Maryland. This serves as the main administrative hub for the fraternity's national activities.
Step-by-step explanation:
The Alpha Phi Alpha Fraternity is one of the most notable African American Greek-lettered organizations. The corporate headquarters for this fraternity is located at option D) Baltimore, Maryland. It is important to distinguish this entity from the collegiate chapters of Alpha Phi Alpha, which are spread out across various universities and colleges in the United States and beyond.