This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Communicable diseases, Subject name: Social & Preventive Medicine
[{'content': 'WHO AIDS defining illness are all except - \nSelect and explain. \nA. Persistant generalised lymphadenopathy, B. Oropharyngeal candidiasis, C. CMV retinitis, D. P. Carinii pneumonia', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Oropharyngeal candidiasis . Generalised lymphadenopathy,CMV retinitis and pneumocystis carinii are AIDS defining illness. Reference:Park&;s textbook of preventive and social medicine,K.Park,23rd edition,page no:348-49. <\\p>', 'role': 'assistant'}]