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': 'Low serum iron and low serum ferritin is seen in: \nSelect and explain. \nA. Iron deficiency anemia, B. Chronic kidney disease, C. Sideroblastic anemia, D. Fanconi anemia', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. (a) Iron deficiency anemiaRef-.Chapter 104: Harrison 18th editionDiseaseSerum ironSerum ferritinTIBCIron deficiency anemiaDecreasedDecreasedIncreasedChronic kidney disease (anemia is due to deficiency of erythropoietin)NormalNormal/ decreased if lost in urine due to kidney pathologyNormalSideroblastic anemiaIncreasedIncreasedDecreasedFanconi anemia( anemia is due to congenital aplastic anemia)NormalNormalnormal', 'role': 'assistant'}]