What categories of professionals does the board regulate and license?

The board specifically regulates and licenses professionals within the beauty and personal care industry, which includes cosmetologists, estheticians, and manicurists. These categories of professionals focus on various aspects of beauty services, such as hair styling, skin care, and nail care. Each of these roles requires specialized training and education to ensure that practitioners can provide safe and effective services to clients.

In contrast, the other choices involve professions outside the beauty industry. Chefs and bartenders relate to food and beverage services, while contractors and electricians pertain to construction and electrical work. Healthcare providers and therapists fall under medical and therapeutic disciplines. Therefore, the focus on beauty and personal care practices distinguishes cosmetologists, estheticians, and manicurists as the correct answer for the board's regulatory scope.