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': 'In an outbreak of cholera in a village of 2000 population 20 case have occured and 5 have died. Case fatality rate is \nSelect and explain. \nA. 1%, B. 0.25%, C. 25%, D. 5%', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Case fatality rate = (Total no. of deaths due to a particular case / Total no. of cases due to the same disease) * 100\nHere, CFR = (5/20)*100= 25%', 'role': 'assistant'}]