An instruction is stored at location $500$ with its address field at location $501$. The address field has the value $400$. A processor register $R_1$ contains the number $200$. Match the addressing mode $($List-I$)$ given below with effective address $($List-II$)$ for the given instruction:

List-I	Addressing Mode	List-II	Effective Address
(a)	Direct	(i)	200
(b)	Register indirect	(ii)	902
(c)	Index with $R_1$ as the index register	(iii)	400
(d)	Relative	(iv)	600