This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anti Microbial, Subject name: Pharmacology
[{'content': 'Griseofulvin is not useful in one of the following:(1990) \nSelect and explain. \nA. T.capitis, B. T.cruris, C. T.versicolor, D. T.pedis', 'role': 'user'}, {'content': 'Answer: C \nExplanation: cRef: KDT, 4th ed, p. 774', 'role': 'assistant'}]