This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Misc. (R.B.C), Subject name: Pathology
[{'content': 'Aplastic anemia can progress to all except: \nSelect and explain. \nA. AML, B. Myelodysplastic anemia, C. Pure red cell aplasia, D. Paroxysmal nocturnal hemoglobinuria', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. (c) Pure red cell aplasia(Ref: Robbins 9th/pg 653-655)Aplastic anemia can progress toAMLMyelodysplastic anemiaParoxysmal nocturnal hemoglobinuriaAplastic anemia cannot progress to Pure red cell aplasia', 'role': 'assistant'}]