External barriers of listening are______a.Stressb.Soundc.None of the aboved.Mood of the listner

The external barriers of listening are:

a. Stress: This is not necessarily an external barrier. Stress is usually an internal factor that can affect a person's ability to listen effectively. It can cause the mind to wander, making it difficult to focus on the message being communicated.

b. Sound: This can be an external barrier to listening. If there is a lot of background noise or if the speaker's voice is not clear, it can be difficult to hear and understand what is being said.

c. None of the above: This option suggests that neither stress nor sound are external barriers to listening. However, as explained, sound can indeed be an external barrier.

d. Mood of the listener: This is typically considered an internal barrier, not an external one. The listener's mood can affect their willingness or ability to pay attention and understand the message.

So, the correct answer is b. Sound, as it is an external factor that can hinder effective listening.