Which status refers to a vessel whose movement is constrained by the sea or current?

• A. Sailing
• B. Not Under Command
• C. Constrained by Drift
• D. Restricted Ability to Maneuver

Answer: (C)

A vessel whose movement is constrained by the sea or current is described as Constrained by Drift. This term signals that external forces—like currents or sea state—largely govern how the ship can move, so it cannot actively steer or follow a planned course as freely as usual. The other terms describe different limitations: Sailing means the ship is actively making way under power or sails; Not Under Command applies when the vessel cannot maneuver as required due to an exceptional situation or impairment (not specifically due to currents); Restricted in Ability to Maneuver covers other internal or operational restrictions that limit maneuverability, not the ongoing drift from environmental forces. So the drift-based constraint is the best match for movement governed by the sea or current.