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': 'Which of the following is the "Least common" complication of measles - \nSelect and explain. \nA. Diarrhoea, B. Pneumonia, C. Otitis media, D. SSPE', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., SSPE o Subacute sclerosing panencephalitis (SSPE) is a rare complication of measles, which develops many years after the initial infection - PSM", 'role': 'assistant'}]