Final answer:
The FBLA-PBL organization supports working professionals through its Professional Division (PD), which allows professionals to mentor and guide younger members.
Step-by-step explanation:
The FBLA-PBL organization that supports working professionals is known as Professional Division (PD). This division provides opportunities for professional members to connect and mentor the future leaders of the business world, specifically those in FBLA-PBL. While the PBL (Phi Beta Lambda) division is targeted towards college students, FBLA (Future Business Leaders of America) is for high school students, and ML (Middle Level) is for junior high and middle school students, PD is the division that caters to the alumni and professionals who want to continue their involvement with the organization and contribute to the development of student members.