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Question
Carrier is
Options:
A .  a continuous frequency capable of being modulated or impressed with a second signal
B .  None of these
C .  a collection of interconnected functional units that provides a data communications service among stations attached to the network
D .  One or more conductors that serve as a common connection for a related group of devices
E .  the condition when two or more sections attempt to use the same channel at the same time
Answer: Option A

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