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
[{'content': 'Which of these is true regarding CML -a) Size of splenomegaly indicates prognosisb) Phagocytic activity of WBC is reducedc) Sudan black stain is specific for myeloblastd) Myeloblast, granuloblast and lymphoblast are PH chromosome +ve. \nSelect and explain. \nA. b, B. c, C. ac, D. ad', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]