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 stage IV HIV includes all, except - \nSelect and explain. \nA. Toxoplamosis, B. Pneumocystis carinii, C. HIV wasting syndrome, D. Oral thrush', 'role': 'user'}, {'content': "Answer: D \nExplanation: <p> Oral thrush is not included in the clinical stage 4 for HIV. Reference:Park's textbook of preventive and social medicine,K.Park,23rd edition,page no:349.<\\p>", 'role': 'assistant'}]