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: Pathology
Chronic granulocytic leukemia is due to 
Select and explain. 
A. Chromosomal deletion, B. Chromosomal mutation, C. Chromosomal translocation, D. None of the above
C: Chromosomal translocation
Answer: C: Chromosomal translocation 
Explanation: None