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': 'Multiple regression analysis is applied to \nSelect and explain. \nA. Compare medians of two independent samples, B. Compare medians of several independent samples, C. Tests association between two categorical variables, D. Tests relation between dependent variable and several independent variables', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]