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: Microbiology
[{'content': 'Fugal staining is done by: \nSelect and explain. \nA. Calcoflor white, B. Leishman stain, C. Z-N staining, D. None', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. a. Calcoflor white', 'role': 'assistant'}]