Which of the following is NOT one of the four basic components of communication?

• A. Sender
• B. Medium
• C. Receiver
• D. Feedback

Answer: (D)

The idea being tested is that a basic communication loop has four building blocks: the sender who originates the message, the message itself, the medium or channel used to convey it, and the receiver who gets the message. Feedback is not one of those four; it’s the response from the receiver that shows whether the message was understood and can prompt a follow-up or clarification. Seeing it this way helps you understand how communication works as a loop: send, receive, respond. For example, a ranger sends a warning over the radio, and the receiver’s acknowledgment or questions serve as feedback, indicating whether the message was received and understood. Without that response, the sender wouldn’t know if additional explanation or repetition is needed.