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: Social & Preventive Medicine
[{'content': 'Mortality for AIDS- \nSelect and explain. \nA. 50%, B. 90%, C. 90%, D. 100%', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]