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: Ophthalmology
Topical antifungal in fusarium infections is: 
Select and explain. 
A. Silver sulfadiazine, B. Natamycin, C. Ketoconazole, D. Flucytosine
B: Natamycin
Answer: B: Natamycin 
Explanation: Natamycin