Question 286Navigation General

The correct answer is C) Preferred channel mark. Preferred channel marks, which indicate the preferred navigational route, do not display white retro-reflective material. Instead, they are marked with red and green colors, often with a red triangle and green square, to clearly indicate the preferred direction of travel. The other options, A) Daymark of no lateral significance, B) Isolated danger mark, and D) Safe watermark, all display white retro-reflective material to enhance their visibility and aid navigation, but the preferred channel mark does not.