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: $.$word $14$

$.$text

MAIN:

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

lw $s$0,0($$t$0)$

la $t$1,$ Y

lw $s$1,0($$t$1)$

add $a$0,$ $s$0,$ $s$1$

li $v$0,1$

syscall

A$.$

la $t$0,$ X

B$.$

la $t$0,$ Z

C$.$

la $t$0,$ W

D$.$

la $t$0,$ Y