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
Rx of dendritic ulcer –a) Acyclovirb) Ganciclovirc) Idoxuridine.d) vidarabinee) Trichophyton cains 
Select and explain. 
A. ac, B. a, C. abcde, D. bc
C: abcde
Answer: C: abcde 
Explanation: Antivirals used for HSV keratitis are Acyclovir, Ganciclovir, Triflurothymidine, vidarabine, Idoxuridine.