which of the following is the correct flow in pulmonary circulation?

A. Blood flows from the right atrium to the right ventricle.
B. Blood reaches the network of capillaires that covers the air sacs.
C. Blood leaves the air sacs.
D. Blood is forced into the lungs, passing through the pulmonary artery.
E. Exchange of gases occurs between the thin membranes of the cells in the air sacs and capillaries.
F. The Oxygen-rich blood passes through capillaries and then into the smallest veins called venules.