This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Levels of Prevention of Disease, Subject name: Social & Preventive Medicine
[{'content': 'Example of disability limitation:- \nSelect and explain. \nA. DOTS, B. Quit smoking, C. BCG vaccine, D. Spectacles for refractory errors', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Disability Limitation:- Teiary level of prevention when patient repos late in pathogenesis phase. Prevent transition of disease from impairment to handicap. Spectacles in refractive error stabilizes visual acuity (Disability limitation) and provides visual clarity (Rehabilitation) too.', 'role': 'assistant'}]