BOTH INTERNATIONAL & INLAND Which vessels shall turn off their sidelights?

Correct Answer: Option D — All fishing vessels that are not making way

Rule 26(b)(ii) and Rule 26(c)(ii) require vessels engaged in fishing (trawling or otherwise) to exhibit sidelights and a stern light only when making way. If they are stopped and not making way through the water, they must turn off these lights to prevent confusion.