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': "Student 't' test is a \nSelect and explain. \nA. Non parametric test, B. Chi square test, C. Parametric test, D. Test of non significance", 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]