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': 'Which of the following agents is recommended for treatment of Gastrointestinal Stromal Tumors (GIST) - \nSelect and explain. \nA. Sorafenib, B. Imatinib, C. Gefitinib, D. Erlotinib', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Imatinib Tyrosine kinase inhibitors imatinib and sunitinib are approved for the treatment of Gastrointestinal Stromal Tumors (GIST)", 'role': 'assistant'}]