The correct option is B (a) and (b)
Neutrophils and monocytes are phagocytic cells which destroy foreign organisms entering the body.
Neutrophils are the most abundant cells (60-65 per cent) of the total WBCs and basophils are the least (0.5-1 per cent) among them.
Basophils secrete histamine, serotonin, heparin, etc., and are involved in inflammatory reactions.
Neutrophils and monocytes are phagocytic cells which destroy foreign organisms entering the body.
Neutrophils are the most abundant cells (60-65 per cent) of the total WBCs and basophils are the least (0.5-1 per cent) among them.
Basophils secrete histamine, serotonin, heparin, etc., and are involved in inflammatory reactions.