What is an example of a communication channel?

A text message or email serves as a communication channel because it is the medium through which information is transmitted from one party to another. In communication theory, a channel refers specifically to the vehicle that carries the message from the sender to the receiver. This includes written forms of communication like text messages and emails, which facilitate the exchange of information and enable individuals to convey their thoughts across distances.

The other choices refer to elements of the communication process but do not embody a channel themselves. The thoughts of the sender represent the ideas or messages to be conveyed rather than the medium used. Feedback received is an important part of the communication loop that indicates whether the message has been understood but does not constitute a channel. Similarly, the concept being conveyed is the content of the message, not the means of delivery. Thus, a text message or email is the clear example of a communication channel in this context.