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: Medicine
[{'content': 'Pathological Features of Idiopathic pulmonary Hemosiderosis are all except \nSelect and explain. \nA. Hyperplasia of type II alveolar pneumocytes, B. Alveolar capillary dilatation, C. Diffuse alveolar proteinosis, D. Hemosiderin laden macrophages', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Idiopathic pulmonary Hemosiderosis is characterized by diffuse alveolar hemorrhage.', 'role': 'assistant'}]