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: Pharmacology
All of the following antifungal drugs inhibit ergosterol biosynthesis EXCEPT : 
Select and explain. 
A. Ketoconazole, B. Fluconazole, C. Amphotericin B, D. None of these
C: Amphotericin B
Answer: C: Amphotericin B 
Explanation: None