Final answer:
Aircraft operating below FL600 in Mosaic/Multi-Sensor Mode should be separated by 5 miles, ensuring safe distance and collision avoidance.
Step-by-step explanation:
When using Mosaic/Multi-Sensor Mode, separate aircraft operating below FL600 (Flight Level 600) by 5 miles. This answer is based on standard air traffic control procedures which typically require a set amount of lateral separation between aircraft to ensure safe distances are maintained. The correct answer to this question is Option A) 5. In the context of air traffic management, this distance is important for collision avoidance and managing the orderly flow of air traffic, particularly when radar coverage is combined (mosaic) from multiple sensors.