This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bronchopulmonary Segments, Embryonic veins, Subject name: Anatomy
Ductus venosus connects: 
Select and explain. 
A. Pulmonary trunk and descending aoa, B. Right atrium and left atrium, C. Poal vein and IVC, D. Pulmonary trunk and ascending aoa
C: Poal vein and IVC
Answer: C: Poal vein and IVC 
Explanation: In fetal circulation, ductus venosus shunts a poion of the left umbilical vein blood flow directly to the inferior vena cava. It allows oxygenated blood from the placenta to bypass the liver. The only related option appears to be choice c. Fig. : Fetal circulation