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: Dental
[{'content': 'Specific stain for fat cells is \nSelect and explain. \nA. Eosin & haematoxylin, B. Carbol fuschin, C. Sudan III, D. Cresyl violet', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]