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: Dental
[{'content': 'Upper and lower boundaries of confidence interval can be termed as: \nSelect and explain. \nA. Confidence index, B. Confidence limit, C. Confidence level, D. None of the above', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Confidence level:\nIs the level of hope or expectation fixed at a sufficiently high level while dealing with samples, to ensure high reliability.\nConfidence limit:\xa0Are the upper and lower boundaries of a confidence interval.', 'role': 'assistant'}]