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': "All of the following are features of central retinal aery occlusion except: \nSelect and explain. \nA. Marked narrowing of retinal aerioles, B. 'Cherry red spot' at macula, C. Retinal oedema, D. Multiple superficial haemorrhages", 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. Multiple superficial haemorrhages', 'role': 'assistant'}]