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': 'Rosettes found at the lidmargin are a feature of \nSelect and explain. \nA. Squamous blepharitis, B. Bacterial blepharitis, C. Stye, D. Chalazion', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Anterior lid margin shows dilated blood vessels (rosettes) is seen in Bacterial Blepharitis (Ulcerative blepharitis).', 'role': 'assistant'}]