(a) It shall be unlawful for any transient merchant which is a corporation to engage in business in any county of this state unless such transient merchant shall comply with all applicable provisions of Title 14, relating to corporations, and obtain a license.

(b) It shall be unlawful for any transient merchant which is not a corporation to engage in business in any county of this state unless said transient merchant shall have and continuously maintain a registered agent or agents as provided in Code Section 43-46-5 and shall obtain a license.