BOTH INTERNATIONAL & INLAND A power-driven vessel shows the same lights as which vessel?

Correct Answer: Option C — a pushing vessel and a vessel being pushed, when they are rigidly connected in a composite unit

Rule 24(b) explicitly defines a power-driven vessel and a vessel being pushed ahead, when rigidly connected in a composite unit, as a single power-driven vessel. Consequently, they must exhibit the lights prescribed in Rule 23 for a power-driven vessel, rather than the lights for a vessel engaged in towing.