Answer:
(B) Noise, pyschological
Explanation:
Psychological noise occurs when the person trying to heed the propagated message begins to let his mind wander over another subject. It is a noise present in the head of the person, which ends up impeding the understanding of the message, that is, the communication itself. Like Tracy, who is trying to make a communication about work, but her mind insists on thinking about the death of her dog.
Breathing begins with inhalation when the contraction of the diaphragm flattens on contraction, pulling the lungs down. The contraction of these muscles increases the volume of the lungs. This reduces the air pressure in the lung to below that of the external air. This pressure difference forces air to move into the lungs where gas exchange occurs. The relaxation of the diaphragm and intercostals reduces the volume of the lungs, which then increases the air pressure inside the lung to that above the external air. This forces air out of the lungs. The cycle goes on and on. Hope this helped!
