This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Hepatobiliary System, Subject name: Anatomy
Ligamentum teres of the liver is remnant of - 
Select and explain. 
A. Umbilical arteries, B. Left umbilical vein, C. Ductus-venosus, D. Ductus arteriosus
B: Left umbilical vein
Answer: B: Left umbilical vein 
Explanation: Ans. is 'b' i.e., Left umbilical vein o Repeat from previous sessions