Assuming forwarding is implemented, the CPI is Consider the following sequence

$\backslash$table$[[,$CC$1,$CC$2,$CC$3,$CC$4,$CC$5,$CC$6,$CC$7,$CC$8,$CC$9,$CC$10,$CC$11,$CC$12,$CC$13,$CC$14],[$LW R$1,0($R$2)$;$,,,,,,,,,,,,,,],[$LW R$3,4($R$2)$;$,,,,,,,,,,,,,,],[$LW R$4,8($R$3)$;$,,,,,,,,,,,,,,],[$ADD R$5,$ R$1,$ R$3$;$,,,,,,,,,,,,,,],[$SLT R$6,$ R$5,$ R$4$;$,,,,,,,,,,,,,,]]$

Assuming forwarding is implemented, the $\frac{C}{P}$I is

$2\mathrm{.}2$

$4\mathrm{.}1$

$2$

None of the above.

The correct answer is $2\mathrm{.}2$ but don't know why that is$.$