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': 'Most characteristic eye lesion in diabetes is \nSelect and explain. \nA. Papilledema, B. Proptosis, C. Capillary aneurysm, D. Cataract', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Most characteristic - Capillary aneurysm.', 'role': 'assistant'}]