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
Opinion of a people for a test was expressed as very satisfied, dissatisfied, very dissatisfied: 
Select and explain. 
A. Nominal, B. Ordinal, C. Interval, D. Ratio
B: Ordinal
Answer: B: Ordinal 
Explanation: Ordinal