Which statement is true?
AAll arteries carry oxygen-rich blood.
BAll veins carry oxygen-rich blood.
CAll arteries except the pulmonary artery carry oxygen-rich blood.
DAll veins except the pulmonary vein carry oxygen-rich blood.
AAll arteries carry oxygen-rich blood.
BAll veins carry oxygen-rich blood.
CAll arteries except the pulmonary artery carry oxygen-rich blood.
DAll veins except the pulmonary vein carry oxygen-rich blood.