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': 'All are causes of hypoproliferative anemia except: \nSelect and explain. \nA. Early iron deficiency, B. Renal disease, C. Chronic inflammation, D. Later stages of iron deficiency', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Causes of hypoproliferative anemia are early iron deficiency (before hypochromic microcytic red cells develop), acute and chronic inflammation, renal disease, protein malnutrition, endocrine deficiencies and anemias from marrow damage. Reference: Harrisons Principles of Internal Medicine, 18th Edition, Page 844', 'role': 'assistant'}]