This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Thorax, Subject name: Anatomy
[{'content': 'Ductus venosus connects \nSelect and explain. \nA. Pulmonary trunk and IVC, B. Right atrium and left atrum, C. Left umbilical vein and IVC, D. Pulmonary trunk and ascending aoa', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ductus venosus shunts a poion of the left umbilical vein blood flows directly to the inferior vena cava. Thus, it allows oxygenated blood from the placenta to bypass the liver. BD CHAURASIA'S HUMAN ANATOMY.VOLUME 1. 6T H EDITION.PAGE NO 268", 'role': 'assistant'}]