This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: School Health, Geriatrics, Subject name: Social & Preventive Medicine
In a school, 1 urinal and 1 latrine should be made per ___ and ___ students respectively:- 
Select and explain. 
A. 60,100, B. 40,100, C. 60,90, D. 40,90
A: 60,100
Answer: A: 60,100 
Explanation: HEALTHFUL SCHOOL ENVIRONMENT:- 1 urinal/60 students 1 latrine/100 students. 1 Class room for max 40 students Per capital space > 10 ft2 Doors + Windows > 25% of floor area Desks should be of Minus type.