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': 'Tertiary prevention among the following is \nSelect and explain. \nA. Vaccination, B. Sputum test for TB case, C. Health education, D. Rehabilitation', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]