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': 'Pizza pie appearance is seen in ? \nSelect and explain. \nA. Toxoplasmosis, B. Congenital rubella, C. Drug toxicity, D. CMV retinitis', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., CMV retinitis", 'role': 'assistant'}]