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: Pharmacology
[{'content': 'Anticancer drug causing lung fibrosis is: \nSelect and explain. \nA. Bleomycin, B. Cisplatin, C. Fulvestrant, D. Tamoxifen', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Bleomycin', 'role': 'assistant'}]