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': 'Iridocyclitis is a feature of \nSelect and explain. \nA. Juvenile rheumatoid ahritis with systemic involvement, B. Seropositive, pauciaicular, juvenile rheumatoid ahritis, C. Seronegative pauciaicular juvenile rheumatoid ahritis, D. Seropositive, polyaicular juvenile rheumatoid ahritis', 'role': 'user'}, {'content': 'Answer: C \nExplanation: C. i.e. Seronegative pauciaicular juvenile rheumatoid ahritis', 'role': 'assistant'}]