This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Environment and health, Subject name: Social & Preventive Medicine
According to floor space standards, the half unit is considered at child age of? 
Select and explain. 
A. <12 months, B. 1-5 years, C. 1-10 years, D. 10-20 years
C: 1-10 years
Answer: C: 1-10 years 
Explanation: Overcrowding is the situation in which more people are living in a single dwelling thanthere is space for so that,the movemwnt is restricted,privacy secluded,hygiene impossible,rest and sleep difficult. The accepted stardards are -persons per room -floor space: according to floor space standard baby under 12 months is not counted and 1- 10 years is cointed as half a unit -sex sepaeration Parks textbook of preventive and social medicine.K Park. Edition 23.Pg no: 752