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': "Splenic macrophages in Gaucher's disease differ from those in ceroid histiocytosis by staining positive for - \nSelect and explain. \nA. Lipids, B. Phospholipids, C. Acid fast stain, D. Iron", 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Lipids", 'role': 'assistant'}]