Final answer:
The correct answer is D. All of the above, meaning a power-driven vessel must keep out of the way of vessels not under command, vessels restricted in their ability to maneuver, and vessels engaged in fishing, according to the International Regulations for Preventing Collisions at Sea (COLREGS).
Step-by-step explanation:
A power-driven vessel underway shall keep out of the way of a vessel not under command, a vessel restricted in her ability to maneuver, and a vessel engaged in fishing. Therefore, the correct answer is D. All of the above.
In navigational terms, a vessel not under command is one which through some exceptional circumstance is unable to maneuver as required by the navigation rules and is therefore unable to keep out of the way of another vessel. A vessel restricted in her ability to maneuver is one which from the nature of her work is unable to keep out of the way of another vessel, and vessels engaged in fishing are those actively fishing with nets, lines, trawls, or other fishing apparatus which restrict maneuverability.
By international maritime law, specifically the International Regulations for Preventing Collisions at Sea (COLREGS), power-driven vessels must give way to these types of vessels to ensure safety and prevent collisions on the water.