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
[{'content': 'Not a cause of microcytic hypochromic anemia - \nSelect and explain. \nA. Sickle cell disease, B. Aplasic anemia, C. Iron deficiency anemia, D. Hereditary spherocytosis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: <p>Microcytic hypochromic anemia is seen in iron deficiency anemia , thalassemia , sideroblastic anemia, hereditary spherocytosis & in anemia of chronic disorder.</p><p>Reference :Harsh mohan textbook of pathology sixth edition pg no 292 & 294.</p>', 'role': 'assistant'}]