55 yo man with a long history of type 2 diabetes mellitus comes to the physician for follow-up. He keeps a diary of his blood glucose levels, which have ranged from 100-160 mg/dl over the past 3 months. Laboratory analysis shows a HemoglobinA2 , level of 7.5% (normal 1.5%-3.5%). What would you likely suspect on this patient’s peripheral blood smear?
A. Rouleaux formation
B. Target cells
C. Spherocytes
D. Echinocytes
E. Megaloblasts
F. Hypersegmented neutrophils