This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General obstetrics, Subject name: Gynaecology & Obstetrics
[{'content': 'Oxygenated blood from the placenta reaches the fetal hea In utero : \nSelect and explain. \nA. Umbilical aeries, B. Umbilical vein, C. Ductus venosus, D. Ductus aeriosus', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Oxygenated blood passes from the placenta to the fetus the umbilical vein which passes beneath the anterior abdominal wall and distributes blood to the liver and the ductus venosus to the inferior vena cava which then enters the right atrium. Reference: Williams textbook of Obstetrics,4th edition page 135', 'role': 'assistant'}]