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': 'Which of the following is related with 3rd part of duodenum? \nSelect and explain. \nA. Portal vein, B. Head of pancreas, C. Hepatic artery, D. Superior mesentric vein', 'role': 'user'}, {'content': 'Answer: D \nExplanation: 3rd\xa0part of duodenum is crossed by superior mesentric vessels.', 'role': 'assistant'}]