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': 'Cherry red spot at macula is seen in : \nSelect and explain. \nA. Macular infarction, B. Neimen picks disease, C. Commotio retinae, D. CRVO', 'role': 'user'}, {'content': 'Answer: D \nExplanation: D i.e. CRVO CRAO (not CRVO) presents with cherry red spot at macula Q', 'role': 'assistant'}]