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 given population of 10,000 , people had 200 deaths in a year. Out of those 40 died due to HIV. What is proportional mortality Rate from HIV 
Select and explain. 
A. 10%, B. 20%, C. 0.40%, D. 0.20%
B: 20%
Answer: B: 20% 
Explanation: None