There are 1000 instructions in a program.They are like lw, r, lw, r, lw, .....
lw instructions are load/store type and r instructions are non load/store type.Each lw instruction is dependent only on rightmost r instruction on it's left and each r instruction depends only on rightmost lw instruction on it's left. The program is running on a 5 stage(IF,ID,EX,MEM,WB) pipeline.Operand forwarding is used here.What will be the effective cpi?
A) 1.204
B) 1.504
C) 2.204
D) 2.504