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': 'CD marker specific for myeloid series is: \nSelect and explain. \nA. CD34, B. CD45, C. CD99, D. CD117', 'role': 'user'}, {'content': 'Answer: D \nExplanation: . CD117', 'role': 'assistant'}]