This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Blood, Subject name: Medicine
This is the peripheral smear of which disease? 
Select and explain. 
A. Thalassemia, B. Irion deficiency anemia, C. Sickle cell anemia, D. Sideroblastic anemia
C: Sickle cell anemia
Answer: C: Sickle cell anemia 
Explanation: Ans. C. Sickle cell anemiaSickle cell anemia. The elongated and crescent-shaped red blood cells seen on this smear represent circulating irreversibly sickled cells. Target cells and a nucleated red blood cell are also seen.