This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Non communicable diseases, Subject name: Social & Preventive Medicine
The commonest cause of death in the sophisticated world- 
Select and explain. 
A. Ischemic hea disease, B. Accidents, C. Infectious disease, D. None of the above
A: Ischemic hea disease
Answer: A: Ischemic hea disease 
Explanation: The prevalence of IHD among adults was estimated at 96.7 per 1000 population in urban and 27.1 in rural areas. Ref- Park&;s textbook of Preventive and Social Medicine 24th edition.