Match List-I with List-II:

	List-I		List-II
a)	Boiling point order	i)	HF < HCl < HBr < HI
b)	Melting point order	ii)	${\mathrm{PH}}_3<{\mathrm{AsH}}_3<{\mathrm{NH}}_3<{\mathrm{SbH}}_3$
c)	Acidic strength	iii)	${\text{TeO}}_2<{\text{SeO}}_2<{\text{SO}}_2$
d)	Reducing character	iv)	HCl<HBr<HF<HI

Choose the correct answer from the options given below