This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Iron deficiency anemia, Subject name: Pathology
[{'content': 'The peripheral blood smear of an anemic 1-year-old child is shown in the illustration. The most likely diagnosis is \nSelect and explain. \nA. anemia of chronic disease., B. aplastic anemia., C. hereditary spherocytosis, D. iron deficiency anemia.', 'role': 'user'}, {'content': 'Answer: D \nExplanation: - Given illustration shows hypochromia and microcytosis along with anisopoikilocytosis - suggests the diagnosis of Iron deficiency anemia. - Iron deficiency anemia is the most common cause of hypochromic microcytic anemia.', 'role': 'assistant'}]