This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Chemotherapy: General Principles, Subject name: Pharmacology
[{'content': 'Imatinib primarily acts by inhibiting: \nSelect and explain. \nA. BCR-ABL, B. Tyrosine kinase, C. PGDFR, D. None', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. (B) Tyrosine kinase(Ref: KDT 8th/e p929)Imatinib inhibits tyrosine kinase linked withabl-bcr fusionPDGF receptorc-kit receptor', 'role': 'assistant'}]