This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Family Systems in India, Subject name: Social & Preventive Medicine
Upper class score in Kuppuswamy Socio-economic status scale is: 
Select and explain. 
A. 10-May, B. 15-Nov, C. 16-25, D. 26-29
D: 26-29
Answer: D: 26-29 
Explanation: Socioeconomic classes under Modified Kuppuswamy Scale Socioeconomic class Total score Upper 26-29 Upper middle 16-25 Lower middle 11-15 Upper lower 05-10 lower 01-04