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': "In sympathetic ophthalmitis, Dalen-Fuch's nodules are formed on the: \nSelect and explain. \nA. Iris, B. Ciliary body, C. Choroid, D. All of the above", 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. Choroid', 'role': 'assistant'}]