This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anemia, Subject name: Medicine
[{'content': 'Which Is NOT true about iron deficiency anemia? \nSelect and explain. \nA. Hyper-segmented neutrophils, B. Microcytosis precedes hypochromia, C. MCHC<50%, D. Commonest cause of anemia in India', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Hypersegmented neutrophils (more than 5 lobes of neutrophils) is seen in vitamin B12 deficiency. Iron deficiency anemia is the most common cause of anemia in India. It is characterized by microcytic hypochromic peripheral smear.', 'role': 'assistant'}]