Which of the following represents the four light systems?

The correct choice identifies the four light systems as continuous, standby, movable, and emergency.

Continuous lighting is designed to provide constant illumination, crucial for safe navigation and operations. Standby lighting refers to systems that are not always in use, but can be activated when needed to ensure safety. Movable lighting indicates lights that can be repositioned to accommodate different operational needs, enhancing flexibility and adaptability. Emergency lighting is vital for providing illumination during power outages or critical situations, ensuring safety and visibility during emergencies.

Each of these systems plays a specific role in maritime operations, ensuring safety and efficiency in various conditions. Understanding these categories helps in proper maintenance and implementation of lighting systems, which is essential for effective maritime enforcement operations.