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': "Dharmendra's index and Jopling's classification deals with: \nSelect and explain. \nA. TB, B. Leprosy, C. Syphilis, D. Polio", 'role': 'user'}, {'content': "Answer: B \nExplanation: Dharmendra's index is for grading the bacterial index in Leprosy. The Ridley and Jopling classification is used for the classification of Leprosy. Ref: Park Textbook of Preventive and Social Medicine, 19th Edition, Page 577; Essentials of Dermatology, Venereology and Leprosy By Chattopadhyay, Page 159; Dermatology By Otto Braun-Falco, Page 223", 'role': 'assistant'}]