This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Infection, Subject name: Medicine
[{'content': 'Topical antifungal used in treatment of Taenia carports \nSelect and explain. \nA. Tolnaftate, B. Itraconazole, C. Fluconazole, D. Griseofulvin', 'role': 'user'}, {'content': 'Answer: A \nExplanation: (Tolnaftate) (766-KDT 6th)Topical antifungal agents -Tolnaftate, Undecylenic acid, Benzoic acid, Quiniodochlor, Ciclopirox, Olamine, Sodium thiosulfateTolnaftate - effective drug for T. cruris and T. carporis - most cases respond in 1-3 weeks, because of poor penetrability it is less effective in T. pedis and other hyperkeratinized lesions* for the same reason it is ineffective in T. capitis-involving scalp and tinea unguim-involving nails', 'role': 'assistant'}]