The correct option is A Lymphocytes
Agranulocytes formed in spleen and lymph nodes are non granular white blood cells that contain non lobulated nuclei. These form about 35% of total leucocytes (3.5 X 109 per litre). These are of two types monocytes and lymphocytes.
Granulocytes are white blood cells with secretory granules in its cytoplasm, e.g. an eosinophil or a basophil.