This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Inflammations of the Cornea, Subject name: Ophthalmology
[{'content': 'Nummular keratitis is seen in \nSelect and explain. \nA. Bacterial keratitis, B. Herpes zoster keratitis, C. Acanthamoeba keratitis, D. Fungal keratitis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. (b) Herpes zoster keratitisRef: A.K. Khurana 6th ed. /108-109', 'role': 'assistant'}]