With respect to the vectoring ring of a steerable internal duct thruster, what statement represents the operating principle of the vectoring ring?

Correct Answer: Option B — The vectoring ring is used to control the orientation of the deflector vanes of the pump discharge.

The vectoring ring functions as a steering nozzle for waterjet propulsion systems. By adjusting the orientation of the deflector vanes at the pump discharge, the ring redirects the high-velocity water stream, allowing the vessel to be steered effectively even at zero or very low forward speeds.