This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Rural & Urban Health Centres, Workers, Norms, Subject name: Social & Preventive Medicine
[{'content': 'Highest level of integration in health service is:- \nSelect and explain. \nA. PHC, B. Sub center, C. CHC, D. District hospital', 'role': 'user'}, {'content': 'Answer: A \nExplanation: - Integrated health service ( which is a pa of primary health care) is provided at:- Village health unit Sub center and PHC. - Amongst these , PHC is the highest level.', 'role': 'assistant'}]