This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Health programmes in India, Subject name: Social & Preventive Medicine
[{'content': 'Elimination of leprosy is defined as prevalence - \nSelect and explain. \nA. <1 per 1000, B. <1 per 10000, C. <1 per 1 lakh, D. <1 per 100', 'role': 'user'}, {'content': 'Answer: B \nExplanation: <p> Elimination of leprosy means prevalence of less than 1 case per 10,000 population in all districts of the country. {Reference-park&;s textbook of preventive and social medicine, 23rd edition, pg no.424}</p>', 'role': 'assistant'}]