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
A 30 years old female, RBC Counts 4.5 million, MCV 55fl, TC 8000, no history of blood transfusion 
Select and explain. 
A. Iron deficiency anemia, B. Thalassemia major, C. Thalassemia minor, D. Megaloblastic anemia
C: Thalassemia minor
Answer: C: Thalassemia minor 
Explanation: None