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
Not used topically 
Select and explain. 
A. Nystatin, B. Ketoconazole, C. Griseofulvin, D. Micronazole
C: Griseofulvin
Answer: C: Griseofulvin 
Explanation: C i.e. Griseofulvin