(a) For purposes of this Code section, the term "business establishment primarily engaged in the retail sale of alcoholic beverages in unbroken packages" means an individual, partnership, corporation, association, or other business entity which derives from its retail sale of alcoholic beverages in unbroken packages at least 75 percent of its total annual gross income.

(b) Reserved.

(c) Any person violating this Code section shall be guilty of a misdemeanor, except that the violation of this Code section by a person under 17 years of age shall constitute a delinquent act under Chapter 11 of Title 15 and not a misdemeanor.