Pancytopenia with cellular marrow is seen in all except: (A) Megaloblastic anemia, (B) Myelodysplasia, (C) Paroxysmal nocturnal hemoglobinuria, (D) G6PD deficiency
Answer is D. Pancytopenia with cellular marrow is seen in

Megaloblastic anemia
Myelodysplasia
Paroxysmal nocturnal hemoglobinuria