Why is B correct? White over White is towing or greater than 50m. Thanks
Deck
Rules of the Road: BOTH INTERNATIONAL & INLAND Which display of lights shown in illustration D072RR...
Discussing this exam question.
The dredge in this question is just a regular power vessel for the rules, which must be 50 meters or more. You are looking at it head-on, so see the two side-lights and the two mast-head lights. You are right, you would see the same lights for a vessel less then 50 meters towing astern.