In each of the following questions, you'll be given either C or RISC-V code, and asked to examine a translation into RISC-V or C, respectively.

The translation may have a bug or logic error. Your task is to identify the line number containing the error, or enter "none" if no problem exists.

(a) Given this C code:

if (x < 3) {
goto label;
}
Identify the buggy line in the following RISC-V translation. Select "None", if there is no error.

/* x = s0 */
1. addi t0 x0 3
2. slt t1 s0 t0
3. beq t1 x0 label
(b) Given this C code:

int x[2] = {1, 2}
int y = x[0] + x[1] + 2;
identify the buggy line in the following RISC-V translation or enter "none", if there is none:

/* x = s0, y = s1 */
1. lw t0 0(s0)
2. lw t1 1(s0)
3. add s1,t0,t1
4. addi s1,s1,2
(c) Given this RISC-V code:

add s0 s0 s2
sub s1 s2 s1
j end
identify the buggy line in the following C translation or enter "none", if there is none. (Hint: register order matters):

/* x = s0, y = s1, z = s2 */
1. x += z
2. y -= z
3. goto end
(d) Given this RISC-V code:

slli s0 s0 4
xori s0 s0 3
sw s0 8(s1)
identify the buggy line in the following C translation or enter "none", if there is none:

1. int x; // x = s0
2. int y[3]; // y = s1
3. x *= math. pow(2, 4);
4. x ^= 3
5. y[4] = x;