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. Tortuous retinal vessels', 'role': 'user'}, {'content': 'Answer: B \nExplanation: "Ocular features of epidemic dropsy consists of glaucoma; retinal vascular changes in the form of dilated, tortous vessels, superficial retinal hemorrhage, and papillophlebitis".\xa0\xa0— Archieves of ophthalmology', 'role': 'assistant'}]