This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Growth of the Fetus During Pregnancy, Subject name: Gynaecology & Obstetrics
[{'content': 'Deoxygenated blood from the fetus to the mother is via: \nSelect and explain. \nA. Umbilical artery, B. Umbilical veins, C. Pulmonary artery, D. Pulmonary vein', 'role': 'user'}, {'content': 'Answer: A \nExplanation: 13Ans. (a) Umbilical arteryRef: D. C Dutta 8th ed./ 36* Deoxygenated blood from fetus to mother is via umbilical artery.* Oxygenated blood is via umbilical vein.', 'role': 'assistant'}]