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': 'The cancerogenic chemical that has a very long latent period is - \nSelect and explain. \nA. Benzopyrine, B. Vinyl chloride, C. Asbestos, D. Estrogens', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Asbestos exposure for a long period causes asbestosis. They entire the body through inhalation and are deposited in the alveoli. The long exposure of dust can lead to carcinoma of bronchus. (REF. PARK&;S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICAL 21ST EDITION. PAGE NO - 748)', 'role': 'assistant'}]