INLAND ONLY You are on power driven vessel "I" and in sight of power driven vessel "II" as shown in illustration D036RR below. Vessel "II" sounds one short blast. What action should you take if you agree?

Correct Answer: Option C — sound one short blast and hold course and speed

Under Inland Rules 34(a), when vessels are in sight of one another and meeting in a crossing or head-on situation, agreement to a proposed maneuver is signaled by repeating the same whistle blast and executing safety measures.