What component is necessary for a message to be transmitted?

The component necessary for a message to be transmitted is the channel. A channel in communication refers to the medium through which the message is sent from the sender to the receiver. This can include various forms such as spoken words, written text, electronic signals, or any number of channels utilized in communication. Without a channel, the message cannot effectively reach its intended destination, rendering the process of communication incomplete.

While feedback, the receiver, and the sender are all vital parts of the communication process, they do not serve the primary function of facilitating the actual transmission of the message. Feedback relates to the response received from the receiver about the message sent, the receiver is the individual or group for whom the message is intended, and the sender is the originator of the message. However, without a channel, none of these components can operate to successfully transfer the message from sender to receiver.