Match the items in column I and column II.

Column I		Column II
(a)	Glucagon	(i)	$\mathrm{\beta }$-cells
(b)	Insulin	(ii)	Corpus luteum
(c)	Androgens	(iii)	$\mathrm{\alpha }$-cells
(d)	Progesterone	(iv)	Leydig cells

Select the correct option.

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

The two main types of cells in the Islet of Langerhans (1-2% of pancreatic tissue) are called $\mathrm{\alpha }$-cells and $\mathrm{\beta }$-cells. The $\mathrm{\alpha }$-cells secrete a hormone called glucagon, while the $\mathrm{\beta }$-cells secrete insulin. 

The Leydig cells or interstitial cells, which are present in the inter-tubular spaces of testes produce a group of hormones called androgens mainly testosterone.

Corpus luteum of ovary secretes progesterone.