The correct option is
A Acidophils
White blood cells (WBCs) or leucocytes can be granular or agranular depending upon whether they have granules or not. Granular leucocytes or granulocytes are acidophils, basophils and neutrophils while agranular leucocytes or agranulocytes are lymphocytes and monocytes.
Acidophils are also known as eosinophils. They have large granules which play an important role in immunity, allergy and hypersensitivity. They make about 1-5% of the total leucocyte count.
So, the correct answer is 'Acidophils'.