Direct burial cable is specifically designed to be buried underground and is suitable for outdoor environments where the cable may be subjected to moisture, soil acidity, and other environmental factors. Its construction includes a heavy-duty protective jacket that withstands these conditions, making it the best choice for the described scenario. Regular Cat 6 cables, while capable of handling high-speed data and suitable for most indoor scenarios, are not designed for direct exposure to outdoor conditions. Similarly, Cat 5e cables are not designed for outdoor use and Plenum-rated cables are intended for use in air handling spaces for fire resistance purposes, not for exposure to the elements.