23. What lights shall be exhibited when towing and the length of tow, measuring from thestern of the towing vessel to the after end of the tow exceeds 200 meters?
(A) Two masthead lights in a vertical line, sidelights, stern light and a towing light in a vertical lineabove the stern light.
(B) Three masthead lights in a vertical line, sidelights, stern light and a towing light in a vertical lineabove the stern light.
(C) Two masthead lights in a vertical line, sidelights and stern light.
(D) Three masthead lights in a vertical line, sidelights and stern light.