Correct Answer:
D. All of these
GPS, or Global Positioning System, is a satellite-based navigation system that provides location and time information in all weather conditions, anywhere on or near the Earth where there is an unobstructed line of sight to four or more GPS satellites. Its versatility means it is widely used for tracking and navigation across various modes of transport. Therefore, GPS is effectively used to check the movement of Aircraft, Ship, and Vehicle. The correct answer is All of these because GPS technology is fundamental to modern logistics, aviation, maritime navigation, and personal vehicle tracking, offering precise positioning data for diverse applications.