Final answer:
The decoding barrier occurs when the recipient of a message is unable to understand or interpret the meaning of the message. Therefore, the correct answer option is C)
Step-by-step explanation:
The correct answer to the question is the Decoding barrier. The decoding barrier refers to a communication barrier that occurs when the recipient of a message is unable to understand or interpret the meaning of the message. This can happen due to various factors such as language barriers, cultural differences, or lack of knowledge on the part of the recipient.
For example, if a teacher gives instructions to a student in a language that the student does not understand, it can create a decoding barrier. Similarly, if the teacher is not able to understand the student's response due to language or cultural differences, it can also create a decoding barrier.
In the context of the given question, the other options mentioned are not relevant to the situation where no message is sent. The encoding barrier refers to issues in the encoding or transmitting of the message, the medium barrier refers to issues with the communication channel, and the receiver barrier refers to issues on the recipient's end in receiving the message. None of these barriers apply when no message is sent.