BOTH INTERNATIONAL & INLAND According to the Rules, which operation would require the vessel to display two cones with their apexes together?

Correct Answer: Option D — Trawling

Rule 26(b)(i) specifies that a vessel engaged in trawling, defined as dragging a dredge net or other apparatus through the water, must display two cones with their apexes together in a vertical line. This shape distinguishes trawlers from other fishing vessels and indicates their restricted maneuverability while engaged in fishing.