This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Biostatistics, Subject name: Social & Preventive Medicine
Like scale is? 
Select and explain. 
A. Ordinal scale, B. Nominal scale, C. Variance scale, D. Categorical scale
A: Ordinal scale
Answer: A: Ordinal scale 
Explanation: .