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
Increased iron binding capacity and decreased serum iron is seen in which anemia: 
Select and explain. 
A. Iron deficiency, B. Aplastic, C. Sickle cell, D. Chronic infections
A: Iron deficiency
Answer: A: Iron deficiency 
Explanation: None