Q1. The following instructions executed on a 5-stage pipelined datapath: I If there is no forwarding or hazard detection, insert NOPS to ensure correct execution II In this case, use NOPS only when a hazard cannot be avoided by changing or rearranging instructions. You can assume register R7 can be used to hold temporary values in your modified code. add $1, $5, $3 sw $1, 0 ($2) lw $1, 4 ($2) add $5, $5, $1 sw $1, 0 ($2)