This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anti Microbial, Subject name: Pharmacology
Broad spectrum antifungal agent is 
Select and explain. 
A. Econazole, B. Miconazole, C. Ketoconazole, D. Clotrimazole
C: Ketoconazole
Answer: C: Ketoconazole 
Explanation: (Ketoconazole) (762-KDT 6th)* Ketoconazole - It is the first orally effective broad spectrum antifungal drug useful in both dermatophytosis and deep mycosis a major advance* Terbinafine - is the drug of choice for treating dermatophytoses and especially, oncychomycoses (fungal infections of nails)* It is better tolerated, requires shorter duration of therapy, and is more effective than either itraconazole or griseofulvin (4.10 - Pharmacology - Lippincott's 3rd) Rifampicin decreases blood levels & cimetidine increases blood levels of terbinafine