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': 'Which of the following condition is associated with decreased total iron binding capacity ? \nSelect and explain. \nA. Iron deficiency, B. Thalassemia, C. Sideroblastic anemia, D. Anemia of chronic inflammation', 'role': 'user'}, {'content': 'Answer: D \nExplanation: TIBC increases in iron deficiency, Normal in Thalassemia and Sideroblastic anemia, and low normal or decreased in anemia of chronic inflammation. Reference: Harrisons Principles of Internal Medicine, 18th Edition, Page 848', 'role': 'assistant'}]