This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Communicable diseases, Subject name: Social & Preventive Medicine
[{'content': 'As per WHO, leprosy is a public health problem if prevalence is - \nSelect and explain. \nA. 0.10%, B. 0.01%, C. 0.50%, D. 1%', 'role': 'user'}, {'content': 'Answer: B \nExplanation: <p> As per WHO , leprosy is a public health problem if prevalence is >0.01%. Reference:Park&;s textbook of preventive and social medicine,K.Park,23rd edition,page no:315. <\\p>', 'role': 'assistant'}]