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': 'Standard errors of mean, all are true except ? \nSelect and explain. \nA. Increases with increased number of samples, B. Based on normal distribution curve, C. Measure the confidence limit, D. Standard detion', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Increase with sample size increase", 'role': 'assistant'}]