Which of the Following Best Describes What Occurs in Internal

Multiple Choice

Which of the following best describes what occurs in internal respiration?

A) The exchange of oxygen from the air with carbon dioxide from the blood
B) The exchange of oxygen from the blood and carbon dioxide from the tissue
C) The drawing of air into the lungs as a result of increase in the size of the thoracic cavity
D) The expulsion of air from the lungs as a result of a decrease in the size of the thoracic cavity