This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Misc., Subject name: Anatomy
[{'content': 'All of the following structures are present in hepatoduodenal ligament EXCEPT \nSelect and explain. \nA. Hepatic vein, B. Portal vein, C. CBD, D. Cystic duct', 'role': 'user'}, {'content': 'Answer: D \nExplanation: (D) Cystic duct # Hepatoduodenal ligament: is the portion of the lesser omentum extending between the porta hepatis of the liver and the first part of the duodenum.> Running inside it are the following: Hepatic artery proper Hepatic portal vein Bile duct> Collectively, these structures are known as the portal triad.', 'role': 'assistant'}]