Which of the following represents a characteristic of an ungrounded electrical distribution system?

Correct Answer: Option C — Accidental contact between one line and ground does not cause an outage.

In an ungrounded marine electrical distribution system, compliant with 46 CFR Subchapter J and IEEE 45, the system has no intentional connection to hull ground. Consequently, a single accidental line-to-ground fault completes no return path, allowing continuous, uninterrupted plant operation while safely indicated by ground detector lights.