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: Skin
[{'content': 'The Ridley -Jopling classification for leprosy is based on which of the following parameters? \nSelect and explain. \nA. Clinical, bacteriological, immunological, B. Histopathological, clinical, therapeutic, C. Histopathological, epidemiological, therapeutics, D. Histopathological, clinical, epidemiological', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. a. Clinical, bacteriological, immunological Ridley-Jopling Classification for Leprosy is based on Clinical (skin and nerve involvement), bacteriological (bacteriological/ morphological index in skin and nasal smears) and immunological criteria (Lepromin test).', 'role': 'assistant'}]