Match the following columns and select the correct option.

	Column I		Column II
(a)	Eosinophils	(i)	Immune response
(b)	Basophils	(ii)	Phagocytosis
(c)	Neutrophils	(iii)	Release histaminase, destructive enzymes
(d)	Lymphocytes	(iv)	Release granules containing histamine

	a	b	c	d
1	iii	iv	ii	i
2	iv	i	ii	iii
3	i	ii	iv	iii
4	ii	i	iii	iv

A-III, B-IV, C-II, D-I

A. Eosinophils release histaminase, also known as diamine oxidase (DAO), an enzyme that breaks down histamine.
Histamine is a chemical involved in inflammation.

B. Basophils release granules containing histamine, heparin, serotonin etc.

C. Neutrophils are phagocytic in function and are known as ‘microscopic policemen’.

D. Lymphocytes play a critical role in immune response. B lymphocytes produce antibodies. T cytotoxic cells destroy infected and cancer cells. T helper cells play a role in both humoral immunity and cell mediated immunity.