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
[{'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: C \nExplanation: None', 'role': 'assistant'}]