This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Health programmes in India, Subject name: Social & Preventive Medicine
[{'content': 'Ayushman Bharat was staed in the year \nSelect and explain. \nA. 2015, B. 2016, C. 2019, D. 2018', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ref: Park's Textbook of Preventive and Social Medicine 2th ed", 'role': 'assistant'}]