"Artery" and "Vein" Are Defined by Whether They Take Blood

"Artery" and "vein" are defined by whether they take blood away or toward the heart.If they were defined by whether they carry oxygenated or deoxygenated blood,how would we have to change the names of certain vessels?

A) The hepatic portal vein would be called the hepatic portal artery.
B) The names of the hepatic and renal systems would have to be switched.
C) The names of the pulmonary artery and vein would have to be switched.
D) The names of the coronary artery and vein would have to be switcheD.
E) The names of the aorta and vena cava would have to be switched.