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: Medicine
Which of the following is not a cause of pancytopenia with hypocelllular marrow 
Select and explain. 
A. Acquired aplastic anemia, B. Fanconi's anaemia, C. Some myelodysplasia, D. Aleukemic leukemia
D: Aleukemic leukemia
Answer: D: Aleukemic leukemia 
Explanation: Aleukemic leukemia - pancytopenia with cellular marrow.