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': 'Imatinib is used in the treatment of \nSelect and explain. \nA. Chronic myelomonocytic leukemia, B. Myelodysplastic syndrome, C. Acute lymphoblastic leukemia, D. Gastrointestinal stromal tumors', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Imatinib is used in the treatment of certain types of\xa0leukemia\xa0and\xa0gastrointestinal stromal tumors\xa0(GIST). \nThis medication is also used to treat\xa0dermatofibrosarcoma protuberans, a type of skin tumor. Imatinib is a biologic drug,\xa0also known as targeted therapy.', 'role': 'assistant'}]