Two of the major sources used today for obtaining information to create computer maps are satellites and
a. pixels
c. digitizing
b. the global positioning system
d. none of the above

b. the global positioning system

Explanation:

A global positioning system is a navigation system that allows you to determine where you are located by using broadcasts from several satellites and it helps to find a location, to go from on place to the other, to help create maps and track objects.

answer; i believe the correct answer is (quick access toolbar);