A letter from these matrices can be represented first by its row and next by its column, for example, 'N' can be represented by 21, 44 etc. and 'R' can be represented by 66, 57 etc. Similarly, you have to identify the set for the word 'SIGN'.
Matrix - I

0
1
2
3
4
​

0
S
G
E
N
R
​

1
O
I
N
Y
T
​

2
G
N
S
D
O
​

3
N
H
G
O
F
​

4
K
L
O
M
N
​

​

Matrix - II

5
6
7
8
9
​

5
Z
X
I
S
V
​

6
M
R
S
N
B
​

7
R
N
Y
T
E
​

8
S
W
E
I
R
​

9
Q
A
I
S
D
​

​

Let's check the correctness of the option codes for the word SIGN:
Let's test Option C (58, 79, 31, 44):

58: Row 5, Column 8 ⟹ S (Correct)

79: Row 7, Column 9 ⟹ I (Correct)

31: Row 3, Column 1 ⟹ Y (Incorrect, we need G)

Let's test Option A (76, 88, 02, 04):

76 ⟹ Row 7, Column 6 = S

88 ⟹ Row 8, Column 8 = I

02 ⟹ Row 0, Column 2 = G

04 ⟹ Row 0, Column 4 = K (Incorrect, we need N)

Let's test Option D (89, 11, 23, 44):

89 ⟹ Row 8, Column 9 = S

11 ⟹ Row 1, Column 1 = I

23 ⟹ Row 2, Column 3 = G

44 ⟹ Row 4, Column 4 = N

All characters match perfectly for Option D.