Question 4186 Deck General

The correct answer is C) center of gravity. The turning circle of a vessel is the path followed by the center of gravity of the vessel as it makes a turn of over 360 degrees. This is because the center of gravity is the point around which the vessel rotates during the turning maneuver. The other options are incorrect because the bridge, bow, and centerline do not define the overall path of the vessel during a 360-degree turn. The bridge and bow may move in a different path compared to the center of gravity, and the centerline only represents the longitudinal axis of the vessel, not the complete turning circle.