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': 'Griseofulvin is given for the treatment of onychomycosis for finger nail for a period of: \nSelect and explain. \nA. 2 weeks, B. 6 weeks, C. 2 months, D. 6 months', 'role': 'user'}, {'content': "Answer: D \nExplanation: The treatment of dermatophytosis using Griseofulvin is as follows: Dosage - 125 - 250 QID with meal Finger nails - 4 - 6 months Toenails - 8 - 12 months Ref: Illustrated Synopsis of Dermatology and STD's By Neena Khanna, Page 121", 'role': 'assistant'}]