INTERNATIONAL ONLY You are approaching another vessel and will pass starboard to starboard without danger if no course changes are made. What action should you take?

Correct Answer: Option D — Hold course and sound no whistle signal

Rule 34(a) states that whistle signals are only required when vessels are in sight of one another and are maneuvering as authorized or required by the Rules. If vessels are passing starboard to starboard without any course changes, no maneuvering signal is required or permitted under the International Rules.