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computer science networking
1. Carrier is
(A): a collection of interconnected functional units that provides a data communications service among stations attached to the network
(B): a continuous frequency capable of being modulated or impressed with a second signal
(C): None of the above
(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
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