BOTH INTERNATIONAL & INLAND You are on vessel "A" as shown in illustration D032RR below, and hear vessel "B" sound a signal indicating her intention to overtake you. You feel it is not safe for vessel "B" to overtake you at the present time. What action should you take?

Correct Answer: Option C — Sound five or more short rapid blasts

Rule 34(d) (Inland) and Rule 34(d) (International) require a vessel being overtaken to sound the danger signal—five or more short, rapid blasts—if she fails to understand the intentions of the overtaking vessel or is in doubt whether sufficient action is being taken by the overtaking vessel to avoid collision.