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': 'Adequate treatment for multibacillary leprosy is for - \nSelect and explain. \nA. 2 years, B. 5 years, C. 10 years, D. 7 years', 'role': 'user'}, {'content': "Answer: A \nExplanation: Multibacillary leprosy duration is MB blister packs for 12months,within 18 months. REF. PARK'S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICINE 21ST EDITION. PAGE NO - 297", 'role': 'assistant'}]