This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pediatrics, Subject name: Social & Preventive Medicine
In a certain population, there were 4050 births in the last one year. There were 50 still births, 50 infants died within 7 days whereas 150 died within the first 28 days. What is the neonatal mortality rate? 
Select and explain. 
A. 50, B. 62.5, C. 12.5, D. 49.4
A: 50
Answer: A: 50 
Explanation: Ans. a. 50 (Ref: Park 23/e p564, 20/e p486)Neonatal Mortality Rate (NMR)In the Given QuestionTotal no. of deaths under 28 days = No. of deaths within 7 days + no. of deaths within the first 28 daysTotal no. of live births = Total births - still births