Final answer:
Channel is the medium through which communication occurs, encompassing various forms like face-to-face interaction or mediated communication through technology.
Explanation:
Channel is the medium through which a message must pass in communication. It can be a sensory dimension, a tool for exchanging information, or a series of messages. For example, in public speaking, the channel could be face-to-face interaction or mediated communication through technology like phones or computers.
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