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: Medicine
[{'content': "Monday chest tightness is characteristic of \nSelect and explain. \nA. Asbestosis, B. Coal worker's pneumoconiosis, C. Byssinosis, D. Silicosis", 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]