Why Is Trilateration Important to the Global Positioning System (GPS)

Multiple Choice

Why is trilateration important to the Global Positioning System (GPS) ?

A) Trilateration is a method used to calculate the relative location of an object that requires four reference points.
B) The triangulation method was found to be based on incorrect mathematics and has been abandoned in practice.
C) Trilateration is a complex word that confuses many and fulfills the government's desire to make everything as confusing as possible.
D) None of the above