Match the following and choose correct set.
 

	List–I		List–II
a)	$\mathrm{HCHO}+{\mathrm{C}}_6{\mathrm{H}}_5\mathrm{CHO}\stackrel{{\mathrm{OH}}^{-}}{\to }$	i)	CH3COCH2CH2OH
b)	${\mathrm{CH}}_3{\mathrm{COCH}}_3+{\mathrm{C}}_6{\mathrm{H}}_5\mathrm{CHO}\stackrel{{\mathrm{OH}}^{-}}{\to }$	ii)	CH3COOC2H5
c)	$\mathrm{HCHO}+{\mathrm{CH}}_3{\mathrm{COCH}}_3\stackrel{{\mathrm{OH}}^{-}}{\to }$	iii)	${\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{CH}}_2\mathrm{OH} + {\mathrm{HCO}}_2^{-}$
d)	${\mathrm{CH}}_3\mathrm{CHO}\stackrel{\mathrm{Al}{\left({\mathrm{OC}}_2{\mathrm{H}}_5\right)}_3}{\to }$	iv)	C6H5CH = CHCOCH3

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