Problem $6.$ In the following sequence of instructions:

ADD X$5,$ X$2,$ X$1$

LDUR X$3,[$X$5,$ #$4]$

LDUR X$2,[$X$2,$ #$0]$

ORR X$3,$ X$5,$ X$3$

STUR X$3,[$X$5,$ #$0]$

a$)$ If there is no forwarding or hazard detection, insert NOPs to ensure correct execution.

b$)$ Change and$/$or rearrange the code to minimize the number of NOPs needed. You can assume register X$7$ can be used to hold temporary values in your modified code.

I think between ADD X$5,$ X$2,$ X$1$ and LDUR X$3,[$X$5,$ #$4]$ should be $3$ NOPs, if no$,$ please also explain why while answering the question a$.$