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

	Column I		Column  II
I)	Cyclic flow of electrons	a)	${\mathrm{CF}}_0-{\mathrm{CF}}_1$
II)	Hydrogen ions accumulation	b)	${\mathrm{Mn}}^{++},{\mathrm{cl}}^{-}$
III)	Oxygen evolving complex	c)	Lumen during light reaction
IV)	Diffusion of  H+  across the membrane	d)	Only ATP formed, no NADPH formed

	I	II	III	IV
1)	a	b	c	d
2)	c	d	b	a
3)	d	c	b	a
4)	c	b	a	d