INLAND ONLY Your power-driven vessel is overtaking another power-driven vessel in a narrow channel. You wish to overtake her on her starboard side. Which whistle signal should you sound?

Correct Answer: Option D — one short blast

Rule 34(c)(i) of the Inland Navigation Rules requires a vessel intending to overtake another on the starboard side to sound one short blast. This signal serves as a clear communication of intent to the vessel being overtaken, facilitating a safe and coordinated passing maneuver in a narrow channel.