Answer:
pulmonary vein
Explanation:
The pulmonary veins
transfer oxygenated blood from the lungs to the heart.
It helps complete the pulmonary circuit, by receiving oxygenated blood in the alveoli and returning it to the left atrium.
im pretty sure the answer is C let me know if its wrong dont give me brainiest
They are filled with neon paint like the ones in the blue man group shown below hope this helps
