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: Pathology
As compared to iron deficiency anemia, which of the following is decreased in anemia of chronic disease? 
Select and explain. 
A. Endogenous bone marrow iron stores, B. Serum ferritin, C. Transferrin saturation, D. TIBC
D: TIBC
Answer: D: TIBC 
Explanation: Answer- D. TIBCMCV/MCH- Decreased or normalSerum iron- DecreasedTIBC- Decreased, normalTransferrin saturation- DecreasedSerum ferritin- Normal or increased