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': 'Performance of components of PQLI is counted between- \nSelect and explain. \nA. -1 to +1, B. 0 to 1, C. 0 to 100, D. None', 'role': 'user'}, {'content': 'Answer: C \nExplanation: For each component, the performance of individual countries is placed on a scale of 0 to 100, where 0 represents an absolutely defined worst performance and 100 represent an absolutely defined best performance.\nThe composite index is calculated by averaging the three indicators, giving equal weight to each of them.\nThe resulting PQLI thus also is scaled 0 to 100.', 'role': 'assistant'}]