Which vein brings clean blood from the lungs into the heart?
(A) Renal Vein
(B) Pulmonary Vein
(C) Vena Cava
(D) Hepatic Vein
Correct Answer : Pulmonary Vein
Explanation: The pulmonary veins are a set of veins that deliver clean oxygenated blood from the lungs to the heart. It brings oxygen-rich blood to the left atrium. Systematic veins deliver deoxygenated blood to the heart.
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