Your vessel is mooring port side to. The after gang has sent out a line that makes an angle with the dock and leads forward towards amidships. What is the proper term for this line?

Correct Answer: Option D — the quarter spring

A line originating from the vessel's quarter (aft) that leads forward toward amidships is universally defined in shiphandling doctrine as a quarter spring line. It primarily restrains forward motion and controls vessel positioning alongside the berth.