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: Pathology
Aplastic anemia can progress to - 
Select and explain. 
A. AML, B. Myelodysplastic anemia, C. Paroxysmal nocturnal hemoglobinuria, D. All
D: All
Answer: D: All 
Explanation: Ans. is 'a' i.e., AML; 'b' i.e., Myelodysplastic anemia; 'c' i.e., Paroxysmal nocturnal hemoglobinuria Aplastic anemia can progress to : - Paroxysmal nocturnal hemoglobinuria, Myelodysplastic anaemia, Rarely acute leukemia.