This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Hospital waste and disaster management, Occupational health, Subject name: Social & Preventive Medicine
[{'content': 'Lung cancer is an industrial hazard in/for- \nSelect and explain. \nA. Chimney sweepers, B. Aniline industry, C. Gas industry, D. Benzol indusntry', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Lung cancer is a hazard in gas industry, asbestos industry, nickel and chromium work, arsenic roasting plants. (REF. PARK&;S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICAL 21ST EDITION, PAGE NO - 749)', 'role': 'assistant'}]