Which conductor is used to connect grounding electrodes to the grounding conductor in a wiring system?

The correct choice is the Grounding Electrode Conductor. This conductor is specifically designed to make the connection between grounding electrodes—such as ground rods, plates, or other grounding systems—and the grounding conductor within the electrical system. Its primary function is to ensure that any fault current that might arise has a safe path to the ground, providing a vital safety feature for electrical installations.

The Grounding Electrode Conductor is defined in the National Electrical Code and is crucial for grounding systems because it establishes a direct connection to the earth, which helps to protect against electrical shock and equipment damage during fault conditions. This conductor ensures that the grounding system functions properly, maintaining the integrity of the electrical system and the safety of the environment in which it operates.

Other options do not fit this specific function as precisely as the Grounding Electrode Conductor does. For instance, while the Grounding Conductor and Equipment Grounding Conductor pertain to safety and grounding within a system, they do not specifically refer to the connection to the grounding electrodes. The term "Grounding Wire" is more generic and doesn’t adhere to the specific terminology and definitions set forth by the NEC.