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': 'Stain used for staining fungal elements – \nSelect and explain. \nA. Acid fast stain, B. Mucicarmic, C. Methenamine, D. Gram stain', 'role': 'user'}, {'content': 'Answer: C \nExplanation: For the demonstration of fungal elements in tissue sections following two stains are most commonly used -\n\ni) Periodic acid Schiff (PAS)\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\nii) \xa0Methanamine silver', 'role': 'assistant'}]