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': "Brunner's glands are located in the \nSelect and explain. \nA. Duodenum, B. Jejunum, C. Ileum, D. All", 'role': 'user'}, {'content': 'Answer: A \nExplanation: A i.e. Duodenum', 'role': 'assistant'}]