This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Haematology, Subject name: Medicine
Decreased osmotic fragility is seen in - 
Select and explain. 
A. Hereditary spherocytosis, B. Sickle cell ds, C. Autoimmune hemolytic anemia, D. Thalassemia
D: Thalassemia
Answer: D: Thalassemia 
Explanation: <p>In thalassemia,osmotic fragility characteristically reveals increased resistance to saline hemolysis that is decreased osmotic fragility.</p><p>Reference :Harsh mohan textbook of pathology sixth edition pg no 324.</p>