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': 'The commonly used stain in the study of fungal infections are \nSelect and explain. \nA. a)\tGomori methanamine silver, B. b)\tPAS, C. c)\tH & E, D. All the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]