INLAND ONLY A vessel engaged in public safety activities may display an alternately flashing red and yellow light. Which of the following vessels may exhibit this special light?

Correct Answer: Option B — a vessel engaged in search and rescue

33 CFR 83.34(h) permits vessels engaged in public safety activities, such as search and rescue, to display an alternately flashing red and yellow light. This signal distinguishes these vessels from others, signaling their priority status and the need for other traffic to remain clear during critical rescue missions.