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': 'Bagassosis is a pneumoconiosis caused by inhalation of \nSelect and explain. \nA. Coal particles, B. Cotton, C. Sugarcane dust, D. Asbestos', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]