An instruction is stored at location 501 with its address field at location 502. The address field has the value 600. A processor register R1 contains the number 200. Mode 501 502 503 Load to AC 600 . 600 705 R1 200 Evaluate the effective address if the addressing mode of the instruction is: (a) Direct: (b) Indirect: (c) Relative: (d) Register indirect: (e) Index with R1 as the index register