This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
[{'content': 'Posterior relations of the head of the pancreas include all of the following, except? \nSelect and explain. \nA. First pa of the duodenum, B. Common bile duct, C. Inferior vena cava, D. Aoa', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The posterior relations of the head of the pancreas include the common bile duct, inferior vena cava and the right and left renal veins terminating into it. The first pa of the duodenum is an anterior relation of the head of the pancreas.', 'role': 'assistant'}]