The diagram below shows a simplified drawing of a blood smear observed under a light microscope.

Which of the following rows correctly identifies Cell X and Cell Y?
Cell X: monocyte; Cell Y: erythrocyte\text{Cell X: monocyte; Cell Y: erythrocyte}Cell X: monocyte; Cell Y: erythrocyte
Cell X: neutrophil; Cell Y: thrombocyte\text{Cell X: neutrophil; Cell Y: thrombocyte}Cell X: neutrophil; Cell Y: thrombocyte
Cell X: lymphocyte; Cell Y: thrombocyte\text{Cell X: lymphocyte; Cell Y: thrombocyte}Cell X: lymphocyte; Cell Y: thrombocyte
Cell X: neutrophil; Cell Y: lymphocyte\text{Cell X: neutrophil; Cell Y: lymphocyte}Cell X: neutrophil; Cell Y: lymphocyte