Which of the following was not an enabling factor for mobile telephone service?
A) Dividing a service area into cells so that frequencies could be used by many people at the same time.
B) App stores that provided a wide range of services for mobile phone users.
C) Digital switching technology to move calls from tower to tower.
D) Microelectronics to allow a transceiver to fit into a small box.
Correct Answer:
Verified
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