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
Iron deficiency causes ? 
Select and explain. 
A. Megaloblastic anemia, B. Microcytic hypochromic anemia, C. Macrocytic hypochromic anemia, D. Microcytic hypochromic anemia
B: Microcytic hypochromic anemia
Answer: B: Microcytic hypochromic anemia 
Explanation: Ans. is 'b' i.e., Microcytic hypochromic anemia