This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
In a village of 20,000 population 456 bihs occurred in april, 56 showed no signs of life at bih, 56 died before 28 days of life, 34 died between 28 days- 1 year, 500 was total number of deaths in that year. Infant moality rate? 
Select and explain. 
A. 197.4, B. 320, C. 225, D. 125
C: 225
Answer: C: 225 
Explanation: Ans.C.225IMR = Number of deaths of children less than 1 year of age in a year X 1000/number of live bihs in the same year.IMR=56+34 X1000/400= 225