The correct option is B Basophils – secrete histamine and serotonin.
Leukocytes are white blood cells which are derived from bone marrow stem cells and have three main categories: Lymphocytes, Phagocytes, and Auxiliary Cells. erythrocytes are red blood cells.Thrombocytes are platelets. Antibodies, also referred to as immunoglobulins, are glycoproteins naturally produced in response to invading foreign particles.