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': 'Type of surveillance included in integrated disease control program for non-communicable disease is? \nSelect and explain. \nA. Sentinel surveillance, B. Regular surveillance, C. Periodic regular survey, D. Additional state priority', 'role': 'user'}, {'content': "Answer: A \nExplanation: Park's textbook of preventive and social medicine 23rd edition. sentinel surveillance - a method for identifying the missing cases and there by supplementing the notified cases is required..", 'role': 'assistant'}]