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
[{'content': 'Acquired intrinsic defect in Hymolytic anemia is seen in - \nSelect and explain. \nA. Sicicle cell anemia, B. Hereditary spherocytosis, C. Thalasemmia, D. Paroxysmal nocturnal hemoglobinuria', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]