The correct choice is (d) Erythrocytes
Explanation: The system is capable of determining segmented neutrophils, bands, eosinophils, basophils, lymphocytes, and monocytes, as well as abnormal cells such as atypical lymphocytes, blasts, nucleated red cells, and immature granulocytes. In addition, the system carries out the red cell morphology, evaluating size, shape, and colour, counts the reticulocytes, estimates the platelet count and plots a distribution of red cell diameters.