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
DOC for CML is : 
Select and explain. 
A. Crizotinib, B. Ibrutinib, C. Imatinib, D. Gilterinib
C: Imatinib
Answer: C: Imatinib 
Explanation: Imatinib is a BCR - ABL tyrosine kinase inhibitor, which is the drug of choice for CML(Chronic myeloid Leukemia).