BOTH INTERNATIONAL & INLAND At night, you see the lights shown in illustration D078RR below. These lights would indicate which vessel?

Correct Answer: Option B — on pilotage duty and underway

Rule 29(a) requires a pilot vessel on duty to exhibit two all-round lights in a vertical line, the upper being white and the lower red. These lights identify the vessel as a pilot boat. When underway, the vessel must also display its sidelights and stern light to indicate its movement.