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': 'Epidemic dropsy is characterised by all EXCEPT: \nSelect and explain. \nA. Disc-edema, B. Hard-exudates, C. Peri-retinal haemorrhage, D. Touous-retinal vessels', 'role': 'user'}, {'content': 'Answer: B \nExplanation: B i.e. Hard exudates', 'role': 'assistant'}]