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': 'All of the following is given for the treatment for Pityriasis versicoler Except: \nSelect and explain. \nA. Ketoconazole, B. Griseofulvin, C. Clotrimazole, D. Selenium sulphate', 'role': 'user'}, {'content': 'Answer: B \nExplanation: B i.e. Griseofulvin', 'role': 'assistant'}]