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. Paroxysmal nocturnal hemoglobinuria, D. G6 PD deficiency', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Answer is D (G-6PD Deficiency) Glucose - 6 - PD Deficiency is not associated with Pancytopenia and a cellular marrow Myelodysplasias, PNH and Megaloblastic anemia (Vit B12,Folate deficiency) may present with Pancytopenia and a cellular marrow.', 'role': 'assistant'}]