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
Pancytopemia is caused by - 
Select and explain. 
A. Aplastic anemia, B. MDS, C. Megaloblastic anaemia, D. All
D: All
Answer: D: All 
Explanation: Ans. is 'a' i.e., Aplastic anaemia; 'b' i.e., MDS; 'c' i.e., Megaloblastic anaemia