Match the items given in column I with those in column II and select the correct option.

	Column I		Column II
(a)	Crista ampullaris	(i)	Middle ear
(b)	Ear ossicles	(ii)	Semicircular canal
(c)	Macula	(iii)	Endolymph
(d)	Scala media	(iv)	Saccule and utricle

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

Crista ampullaris – Present in the swollen base (ampulla) of semicircular canal.

Ear ossicles – Malleus, incus and stapes present in the air-filled middle ear.

Macula ­– A patch (projecting ridge) of hair cells in each of the saccule and utricle. 

Scala media – The space within cochlea called scala media is filled with endolymph.