Column - I (Reagent)		Column - II (Reaction)
(I)	${\mathrm{Cl}}_2/{\mathrm{FeCl}}_3, \mathrm{dark}$	(A)	Dehydrohalogenation (Hoffmann's product)
(II)	${\mathrm{C}}_2{\mathrm{H}}_5{\mathrm{O}}^{-}{\mathrm{K}}^{+}/{\mathrm{C}}_2{\mathrm{H}}_5\mathrm{OH}$	(B)	Electrophilic substitution
(III)	${\left({\mathrm{CH}}_3\right)}_3{\mathrm{CO}}^{-}{\mathrm{K}}^{+}/{\left({\mathrm{CH}}_3\right)}_3\mathrm{COH}$	(C)	Free radical substitution
(IV)	${\mathrm{Cl}}_2/\mathrm{sunlight}$	(D)	Dehydrohalogenation (Saytzeff product)
		(E)	Dehydration (Hoffmann's product)

Correct match is 

	I	II	III	IV
1	D	B	A	C
2	D	A	B	C
3	B	D	A	C
4	B	D	E	C