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': 'Moality for AIDS - \nSelect and explain. \nA. 50%, B. 90%, C. 90%, D. 100%', 'role': 'user'}, {'content': "Answer: D \nExplanation: Once infected with HIV ,it is infected for life.strictly speaking,the term AIDS refers only to the last stage of the HIV infection.so the moality is 100%(Ref.PARK'S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICINE 21st Edition page no.316)", 'role': 'assistant'}]