Which statement is true?

A. All arteries carry oxygen-rich blood.

B. All veins carry oxygen-rich blood.

C. All arteries except the pulmonary artery carry oxygen-rich blood.

D. All veins except the pulmonary vein carry oxygen-rich blood.

The correct statement is letter C. All arteries except the pulmonary artery carry oxygen-rich blood. Most arteries are responsible for the delivery of oxygen and nutrients to all cells and the pulmonary veins are the one who transfer oxygenated blood from the lungs to the heart.