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: Pathology
[{'content': 'Iron absorption occurs chiefly from \nSelect and explain. \nA. Small Intestine, B. Duodenum, C. Stomach, D. Oesophagus', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Iron absorption occurs in duodenal part of the small intestine.', 'role': 'assistant'}]