Which line of code inserted in the program will cause the program to output the value $9?$

data

W: $.$word $9$

X: $.$word $4$

Y: $.$word $5$

Z: sword $14$

$.$text

MAIN:

$<<<$ INSERT CODE HERE $>>>$

lw $so$,$ o$($$to$)$

la $tl$,$ Y

lw $sl$,$ o$($$tl$)$

add Sao, $s$0,$ $sl

li $vo$,1$

syscall

O A$.$ la sto, Z