Final answer:
The correct answer is B) Neutral conductor. Grounding ensures that a neutral conductor is at zero volts by connecting it to earth, providing a safe, low-resistance path for electrical current.
Step-by-step explanation:
A grounded conductor is commonly referred to as the B) Neutral conductor. Grounding is the process by which a conductor is fixed at zero volts by connecting it to the earth with a good conductor. In electrical systems, the neutral wire is connected to earth/ground at multiple points, which ensures that it is at zero voltage relative to the earth and is therefore safe to touch even if its insulation is missing.
The neutral wire serves as the return path for the current to complete the circuit. The process of grounding also means there's a low-resistance path to the earth, which can be valuable for safety, particularly in fault conditions when it serves as an alternate path for electrical current.