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 > Iw \$so, O(\$t0) la St1, Y Iw \$s1, 0(\$t1) add $a0,$s0,$0 li \$vo, 1 syscall A. la St0, Y B. lasto, Z c. lasto, W D. 1 a \$to, X