This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Haematology, Subject name: Pathology
In sickle cell anemia all are true except- 
Select and explain. 
A. Sickle cells, B. Target cells, C. Howell jolly bodies, D. Ringed sideroblast
D: Ringed sideroblast
Answer: D: Ringed sideroblast 
Explanation: In sickle cell anemia , the peripheral blood demonstrates numbers of irreversibly sickled cells , reticulocytes and target cells , which results from red cell dehydration.Howell Jolly bodies (small Nuclear remanants)are also present. Ref : Robbins pathologic basis of disease 9th edition: pg636 ;under heading morphology