What does Rule 22 emphasize regarding navigation lights?

Answer: B — The importance of proper display of navigation lights at all times

Rule 22 emphasizes the importance of maintaining the proper display of navigation lights at all times. This is crucial for ensuring safe navigation and preventing collisions on the water. According to maritime rules, all vessels must exhibit the correct navigation lights to signal their presence, position, and status to other mariners. Proper display is critical for visibility, especially during periods of reduced visibility or at night. The requirement for consistent and correct lighting helps other vessels assess a ship's direction and intent, which is vital for safe passage in congested waters or during low-visibility conditions. This rule ensures that all vessels are identifiable, promoting safety across various marine environments regardless of the time of day or weather conditions.