BOTH INTERNATIONAL & INLAND When two vessels are in immediate danger of collision, the stand-on vessel must take which action?

Correct Answer: Option C — assist in taking whatever action is necessary to avoid collision

Rule 17(a)(ii) mandates that when the give-way vessel is not taking appropriate action, the stand-on vessel must take action to avoid collision. This is the 'last clear chance' provision, requiring the stand-on vessel to assist in avoiding the collision when it becomes apparent that the other vessel is failing to act.