This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Blood, Subject name: Medicine
[{'content': 'Adult with progressive pallor, hyper-segmented neutrophils and MCV>100 shows? \nSelect and explain. \nA. Hereditary spherocytosis, B. Megaloblastic anemia, C. Dimorphic Anemia, D. Thalassemia', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. (b) Megaloblastic anaemiaRef: Harrison 19th ed. / 81 e-3fThe presence of macrocytes with hyper segmented neutrophils confirms the answer as megaloblastic anaemia.', 'role': 'assistant'}]