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 one of the following is not a special incidence rate- \nSelect and explain. \nA. Attack rate, B. Secondary attack rate, C. Hospital admission rate, D. Standardized moality rate', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Standardized moality rate Special incidence rates i) Attack rate (case rate) ii) Secondary attack rate iii) Hospital admission rate", 'role': 'assistant'}]