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
[{'content': 'To reduce moality by CHD, best strategy - \nSelect and explain. \nA. Primordial prevetnion, B. Secondary prevention, C. Teiary prevention, D. None', 'role': 'user'}, {'content': "Answer: A \nExplanation: Park's textbook of preventive and social medicine 23rd edition. The novel approach to primary prevention of CHD is primordial prevention. It involves preventing the emergence and spread of CHD risk factors and life styles that have not yet appeared or become endemic..", 'role': 'assistant'}]