BOTH INTERNATIONAL & INLAND Which lights would be shown at night by a vessel which is restricted in her ability to deviate from her course?

Correct Answer: Option A — Three lights in a vertical line, the highest and lowest red and the middle white

COLREGS Rule 27(b) mandates that a vessel restricted in her ability to maneuver, except for those engaged in mineclearance operations, shall exhibit three all-round lights in a vertical line where they can best be seen. The highest and lowest lights are red, and the middle light is white.