In a near-collision, the stand-on vessel should take action to avoid collision.

• A. Maintain its course and speed.
• B. Turn to port.
• C. Reverse engines.
• D. Take action to avoid collision.

Answer: (D)

In a near-collision, the stand-on vessel must take action to avoid collision if the situation indicates that the other vessel’s actions alone aren’t reducing the hazard. This follows Rule 8, which requires taking early and decisive action to prevent a collision. The stand-on vessel isn’t absolved from acting just because it’s supposed to maintain course and speed in a crossing situation; when risk remains or the other vessel isn’t maneuvering to avoid, the stand-on must maneuver to create a safe passing.

So the best response is to take action to avoid collision—alter course, adjust speed, or both in a clear, timely way. The goal is to resolve the risk promptly rather than sticking with the present path or waiting for the other vessel to change course.