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': 'Is not the clinical presentation of herpes simplex keratitis: \nSelect and explain. \nA. Diffuse stromal necrotic keratitis, B. Punctate epithelial keratitis, C. Disciform keratitis, D. Nummular keratitis', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. Nummular keratitis', 'role': 'assistant'}]