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': 'Primary prevention does not include - \nSelect and explain. \nA. Early diagnosis and treatment, B. Health promotion, C. Specific protection, D. Health education', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Early diagnosis and treatment is secondary level of prevention.', 'role': 'assistant'}]