Final answer:
The correct answer is A) Polychromasia. It refers to the condition where RBCs appear as an overall blue tint due to shrinking of the cell membrane, indicating slight immaturity of the erythrocyte.
Step-by-step explanation:
The correct answer to the question is A) Polychromasia. Polychromasia refers to a condition where red blood cells (RBCs) appear as an overall blue tint when stained with Wright stain. This is due to the shrinking of the RBC membrane, indicating slight immaturity of the erythrocyte. It is commonly seen in certain conditions such as polycythemia, which is an elevated level of hemoglobin, whether adaptive or pathological.