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: Physiology
The RBC in beta-thalassemia are typically: 
Select and explain. 
A. Microcytic and hypochromic., B. Microcytic and normochromic., C. Normocytic and normochromic., D. Macrocytic and hypochromic.
A: Microcytic and hypochromic.
Answer: A: Microcytic and hypochromic. 
Explanation: None