Match the following group of organisms with their respective distinctive characteristics and select the correct option.

	Organisms		Characteristics
(a)	Platyhelminthes	(i)	Cylindrical body with no segmentation
(b)	Echinoderms	(ii)	Warm blooded animals with direct development
(c)	Hemichordates	(iii)	Bilateral symmetry with incomplete digestive system
(d)	Aves	(iv)	Radial symmetry with indirect development

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