When a buoy marks a channel bifurcation, the preferred channel is NOT indicated by __________.

Correct Answer: Option D — whether the number is odd or even

Bifurcation buoys are identified by their color, light characteristics, and top bands. Numbering is not a reliable indicator of the preferred channel. Mariners must rely on the color of the topmost band and the light color to determine which side of the buoy offers the preferred channel for transit.