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
[{'content': 'Pancytopenia with Cellular marrow is seen in all except : \nSelect and explain. \nA. Megaloblastic Anemia, B. Myelodysplasia, C. PNH, D. G6PD Deficiency', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Answer is D (G6PD deficiency) PNH, megaloblastic anemia, and Myelodysplasia may all present with pancytopenia and cellular marrow. G6PD deficiency is not associated with Pancytopenia and cellular marrow.', 'role': 'assistant'}]