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
Decrease in serum iron and decrease TIBC is seen in- 
Select and explain. 
A. Iron deficiency anemia, B. Thalassemia, C. Anemia of chronic disease, D. Sideroblastic anemia
C: Anemia of chronic disease
Answer: C: Anemia of chronic disease 
Explanation: None