This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anti-Fungal Drugs, Subject name: Pharmacology
[{'content': 'All of the following antifungal drugs inhibit ergosterol biosynthesis EXCEPT: \nSelect and explain. \nA. Ketoconazole, B. Fluconazole, C. Amphotericin B, D. None of these', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Amphotericin B does not inhibit ergosterol synthesis, instead it binds with ergosterol to form pores in the fungal cell membrane. Fluconazole and Ketoconazole are azoles which act by inhibiting ergosterol biosynthesis. These inhibit the conversion of lanosterol to ergosterol by inhibiting L-14-demethylase.', 'role': 'assistant'}]