Which of the Following Best Describes Geographic Information Systems

Multiple Choice

Which of the following best describes Geographic Information Systems?

A) A constellation of satellites for accurately determining location anywhere near the Earth's surface.
B) Deriving accurate measurements from photographs.
C) Acquiring information about objects without having physical contact with them.
D) A set of techniques for adjusting geospatial datasets in real time.
E) Computer-based tool for management and analysis of geographic information.