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': "Paired t test is equivalent in non parameteric test \nSelect and explain. \nA. Mann-Whitney Test, B. Kruskal-Wallis Test, C. Wilcoxon Signed Test, D. Mc Nemar's Test", 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]