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
School health examination must be done:- 
Select and explain. 
A. Every quaerly, B. Every 6 months, C. Annually, D. Every 2 years
B: Every 6 months
Answer: B: Every 6 months 
Explanation: Newer recommendation: NRHM recommends medical examination of children 'at the time of entry' and thereafter biannually( once every 6 months). Older recommendation: Rennuka Roy school health committee in India recommended medical examination of children ' at the time of entry' and thereafter every 4 years.