Which Statement About Vertebrate Circulatory Systems Is Not True

Which statement about vertebrate circulatory systems is not true?

A) In fish, oxygenated blood from the gills returns to the heart through the left atrium.
B) In mammals, deoxygenated blood leaves the heart through the pulmonary artery.
C) In amphibians, deoxygenated blood enters the heart through the right atrium.
D) In reptiles, the blood in the pulmonary artery has a lower oxygen content than the blood in the aorta.
E) In birds, the pressure in the aorta is higher than the pressure in the pulmonary artery.