This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: obstetrics,pediatrics and geriatrics, Subject name: Social & Preventive Medicine
A community has a population of 10,000 and a bih rate of 36 per 1000. 5 maternal deaths were repoed in current year the MMR is - 
Select and explain. 
A. 14.5, B. 13.8, C. 20, D. 5
B: 13.8
Answer: B: 13.8 
Explanation: applying the formula for maternal moality ratio = Total number of maternal deaths= 5 Bih rate per 1000 population =36 Therefore Total number of bihs 100000 population = 100000/1000x36 =360 Applying formula for MR =5/360x1000 =13.88 Reference Park&;s textbook of preventive and social medicine 23rd edition pg 557