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
Bone marrow aspiration is not indicated in : 
Select and explain. 
A. Thalassemia major, B. Megaloblastic anaemia, C. Idiopathic thrombocytopenic purpura, D. Pure red cell aplasia
A: Thalassemia major
Answer: A: Thalassemia major 
Explanation: None