INLAND ONLY You see the lights shown in illustration D085RR below while proceeding in a channel. What action should you take?

Correct Answer: Option C — Slow down and pass between the two sets of double red lights.

Illustration D085RR displays two sets of double red lights, which indicate a channel is closed to navigation. Under 33 CFR 83.09 (Rule 9) and local regulations, mariners must slow down and pass between the lights, as this indicates the safe, designated path through the restricted area.