This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Epidemiology, Subject name: Social & Preventive Medicine
The simplest measure of moality? 
Select and explain. 
A. Crude death rare, B. Case fatality rate, C. Propotional moality rate, D. Specific death rate
A: Crude death rare
Answer: A: Crude death rare 
Explanation: ref: Park's 23rd edition pg 57 It is the number of deaths (from all causes) per 1000 estimated mid-year population in one year, in a given place.