The exchange of gases between the lungs and the blood is known as exterior respiration. The correct option among all the options that are given in the question is option "C". Exterior respiration is actually the process in which the exchange of gases between the alveoli’s of the lungs and the blood take place. The blood actually carries oxygen from the lungs and gives out the carbon dioxide to the lungs. This is a continuous process and is required for the survival of human beings.