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: Skin
[{'content': 'Not used topically \nSelect and explain. \nA. Nystatin, B. Ketoconazole, C. Griseofulvin, D. Micronazole', 'role': 'user'}, {'content': 'Answer: C \nExplanation: C i.e. Griseofulvin', 'role': 'assistant'}]