In a certain coding language, if the word STORK is coded as VQRON then the word TIRED will be coded is.

The correct option is W F U B G.

To solve this coding-decoding problem, we analyze the relationship between the letters of the original word "STORK" and its coded form "VQRON" by looking at their positions in the English alphabet.

Let us write down the alphabetical positions of each letter in the word "STORK":
S = 19
T = 20
O = 15
R = 18
K = 11

Now, let us examine the alphabetical positions of the coded word "VQRON":
V = 22
Q = 17
R = 18
O = 15
N = 14

By comparing the position values, we can determine the mathematical rule applied to each position:
First letter: $19+3=22$ (S to V)
Second letter: $20-3=17$ (T to Q)
Third letter: $15+3=18$ (O to R)
Fourth letter: $18-3=15$ (R to O)
Fifth letter: $11+3=14$ (K to N)

The coding pattern is an alternating shift of +3 and -3.

We now apply this same pattern to the word "TIRED":
T (20) + 3: $20+3=23$ ⇒ W
I (9) - 3: $9-3=6$ ⇒ F
R (18) + 3: $18+3=21$ ⇒ U
E (5) - 3: $5-3=2$ ⇒ B
D (4) + 3: $4+3=7$ ⇒ G

Putting these letters together, the word "TIRED" is coded as W F U B G.