This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Allied Health Sciences, Subject name: Social & Preventive Medicine
[{'content': 'First referral unit (FRU) is \nSelect and explain. \nA. Sub-centre, B. PHC, C. CHC, D. Medical college and hospital', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Level of health care Primary Secondary Teiary Status in INDIA First level of contact between population and health care system First referral level of health care Second referral level of health care Health services are delivered through Sub - centre, Primary Health Centre Community Health Centre , District Hospital Medical Colleges and Hospitals', 'role': 'assistant'}]