Which of the following statements are true of pulmonary circulation? (Read carefully and select all of the correct statements.)

A)This pathway of circulation begins at the right ventricle and ends at the right atrium.
B)Blood pressure in the pulmonary capillaries is 30 to 35 mmHg.
C)Gas exchange in the pulmonary capillaries depends on the process of filtration.
D)The pulmonary veins return oxygenated blood to the right atrium.
E)None are correct.