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: Dental
[{'content': 'The Central Government Health Scheme (CGHS) was 165. established in the year \nSelect and explain. \nA. 1948, B. 1953, C. 1954, D. 1955', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]