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
[{'content': 'Rx of dendritic ulcer –a) Acyclovirb) Ganciclovirc) Idoxuridine.d) vidarabinee) Trichophyton cains \nSelect and explain. \nA. ac, B. a, C. abcde, D. bc', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Antivirals used for HSV keratitis are Acyclovir, Ganciclovir, Triflurothymidine, vidarabine, Idoxuridine.', 'role': 'assistant'}]