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: Medicine
Auto haemolysis test is positive in - 
Select and explain. 
A. Beta thalessemia, B. Hereditary spherocytosis, C. Vit E deficiency, D. Sickle cell disease
B: Hereditary spherocytosis
Answer: B: Hereditary spherocytosis 
Explanation: None