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
Highest level of integration in health service is:- 
Select and explain. 
A. PHC, B. Sub center, C. CHC, D. District hospital
A: PHC
Answer: A: PHC 
Explanation: - 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.