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: Social & Preventive Medicine
[{'content': 'Byssinosis is seen in – \nSelect and explain. \nA. Cement factories, B. Textile industries, C. Iron factories, D. Grain fields', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Byssinosis is due to exposure to cotton dust in textile industries.', 'role': 'assistant'}]