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
In which of the following condition neutropenia occurs 
Select and explain. 
A. Vasculitis, B. Myeloproliferative neoplasm, C. Exercise, D. Aplastic Anemia
D: Aplastic Anemia
Answer: D: Aplastic Anemia 
Explanation: In Aplastic Anemia total leukocyte count decreasd.Netrophils markedly diminshed and neutropemia is the reglection of the severity of aplasia.