The conductor used to ground the outer cover of a CATV coaxial cable shall be permitted to be what?

The grounding conductor for the outer cover of a CATV coaxial cable provides an essential safety function, typically to prevent electrical shock hazards and equipment damage. The correct choice indicates that various materials can be used to perform this grounding function.

Metal is commonly utilized due to its conductive properties, allowing for effective grounding. However, other materials like wood and plastic can also facilitate grounding under specific circumstances, especially if they integrate conductive elements or are part of a grounding system. Grounding does not solely depend on a single material type; rather, it can be adapted based on the installation's requirements and local code compliance.

This flexibility allows for various configurations to be used, confirming the answer as inclusive of multiple options, as all listed materials can be permissible based on the context and specific installation guidelines.