An example of an agranulocytic leukocyte is a/an A. neutrophil. B. lymphocyte. C. basophil. D. erythrocyte.

The correct answer is option B which is lymphocytes.

Explanation: There are many immune cells in body. White blood Re also immune cells. There are two types of white blood cells based on morphology: Granulocyte: These have granular appearance, due to granules in cytoplasm. Agranulocyte: They have clear appearance. Agranulocyte contains lymphocytes and monoctyes/macrophages. Neutrophil, basophil, erythrocyte are granulocytes.

The leukocytes are the White blood cells (WBCs). These cells are also known as the immune cells, and are divided into two categories, granulocytes and agranulocytes based on the presence and the absence of the granules in their cytoplasm.

The lymphocytes and the monocytes are the agranulocytes found in the blood.

Hence, in this case, the correct answer would be Option B, lymphocytes.