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': 'Results of a test were given as very satisfied, satisfied, dissatisfied, it represents - \nSelect and explain. \nA. Nominal scale, B. Ordinal scale, C. Interval scale, D. Ratio scale', 'role': 'user'}, {'content': 'Answer: B \nExplanation: In this question, data has been placed into categories, i.e. very satisfied, satisfied and dissatisfied.\nSo, an ordinal scale should be used.', 'role': 'assistant'}]