Answer:
D. global positioning system (GPS)
Explanation:
Global positioning system (GPS) is a technology that allows a receiver determine its location using the signals got from satellites. In other words, GPS are used to determine location by sending out signals to series of satellites.
In this question involving a deep sea fisherman who has lost his way after a storm. The GLOBAL POSITIONING SYSTEM (GPS) can be used to locate and get back to his ship's course.