This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Epidemiology, Subject name: Social & Preventive Medicine
[{'content': "Select false statement regarding case fatality rate \nSelect and explain. \nA. It is a killing power of disease, B. It is 'complement of survival rate', C. CFR is a propoion, D. Time interval is specified in CFR", 'role': 'user'}, {'content': 'Answer: D \nExplanation: CFR = 1 - Survival rate Time interval is not specified. Determines killing power of disease/ virulence of organism. CFR is a Propoion (Expressed always in %). CFR of Rabies 100%.', 'role': 'assistant'}]