This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Chemotherapy, Subject name: Pharmacology
Which of the following antifungal is used in cancer chemotherapy? 
Select and explain. 
A. Flucytosine, B. Amphotericin B, C. Voriconazole, D. Ketoconazole
A: Flucytosine
Answer: A: Flucytosine 
Explanation: Flucytosine is used as a pyrimidine antagonist which is a prodrug and is conveed to 5 FU.Ref: KD Tripathi 7th ed; Pg: 791