BOTH INTERNATIONAL & INLAND Power-driven vessels must keep out of the way of sailing vessels except __________.

Correct Answer: Option B — when the sailing vessel is overtaking

Rule 18(a)(ii) requires power-driven vessels to keep out of the way of sailing vessels. However, Rule 18(d) stipulates that any vessel overtaking another must keep out of the way of the vessel being overtaken, regardless of the vessel's status as a sailing vessel or power-driven vessel.