In 1973, the North Carolina General Assembly adopted § 153-4, which provides that “the counties of this state should have adequate authority to execute the powers, duties, privileges, and immunities conferred upon them by law. To this end, the provisions of this Chapter and of local acts shall be broadly construed and grants of power shall be construed to include any additional and supplementary powers that are reasonably necessary or expedient to carry them into execution and effect.” Thus counties are granted the same legislative rule of broad construction of power as is delegated to cities.