Which vessel would exhibit sidelights when underway and not making way?

The answer to this is A. It is a vessel trawling that will exhibit sidelights when it is underway. Its sidelights are not meant to show that it is making way. For those who are not aware trawling vessels are also known as fishing vessels. They may sometimes have more than one trawlers when they are trying to catch a certain number of fish and other creatures from the seas and oceans.

Trawling vessels are not allowed to do bottom trawling in various parts of the seas and oceans because they can harm the other marine life located at the bottom of the ocean floor. There are also some zones that are permanently killed because of wrong trawling.