This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Occupational Health, Subject name: Social & Preventive Medicine
[{'content': 'ESI Act was made in:(1998) \nSelect and explain. \nA. 1946, B. 1948, C. 1952, D. 1954', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans: bRef: Park, 17th ed, p. 585 & 18th ed, p. 617', 'role': 'assistant'}]