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': 'Koeppe nodules are located at \nSelect and explain. \nA. Base of Iris, B. Pupillary border of Iris, C. Pars plana, D. Pars plicata', 'role': 'user'}, {'content': 'Answer: B \nExplanation: In uveitis, Iris nodules develop at\n\nBase of Iris known as Busacca nodules.\nPupillary border of Iris known as Koeppe Nodules.', 'role': 'assistant'}]